13.07.2015 Views

Guide to Health and Safety in the - Business.govt.nz

Guide to Health and Safety in the - Business.govt.nz

Guide to Health and Safety in the - Business.govt.nz

SHOW MORE
SHOW LESS
  • No tags were found...

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

<strong>Guide</strong> <strong>to</strong><strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> <strong>the</strong>Timber Process<strong>in</strong>g Industry


A helpful guide <strong>to</strong> mak<strong>in</strong>g workplaces saferPr<strong>in</strong>ted May 2005ACC1831ISBN: 0–478–27931–02© ACC 2005


Table of contentsIntroduction ................................................................................ iiiKey terms expla<strong>in</strong>ed ..................................................................... vSection One: Safe access1.1 Mak<strong>in</strong>g workplace access safe .............................................1.3What is safe access? ..................................................................................... 1.3What <strong>the</strong> law says ......................................................................................... 1.31.2 Identify<strong>in</strong>g hazards ...............................................................1.4Look<strong>in</strong>g for risks ............................................................................................1.4Common hazards <strong>to</strong> check for .......................................................................1.41.3 Assess<strong>in</strong>g access hazards ....................................................1.51.4 Good practice for safe access .............................................1.6Access <strong>to</strong> your site ........................................................................................1.6Common areas .............................................................................................. 1.7Conveyors ..................................................................................................... 1.7Surfaces ........................................................................................................1.8Work at heights .............................................................................................1.8Ladders .........................................................................................................1.9Fenc<strong>in</strong>g ........................................................................................................1.11Stairs .......................................................................................................... 1.12H<strong>and</strong>rails .................................................................................................... 1.14Forklift cages ............................................................................................... 1.14Tarp<strong>in</strong>g of timber trucks ............................................................................... 1.16Timber stack<strong>in</strong>g ........................................................................................... 1.18Isolation <strong>and</strong> lockout ..................................................................................1.20Conf<strong>in</strong>ed spaces ......................................................................................... 1.21Signage ......................................................................................................1.22Light<strong>in</strong>g ...................................................................................................... 1.23Personal protective equipment ....................................................................1.24Section Two: Manual h<strong>and</strong>l<strong>in</strong>g2.1 Mak<strong>in</strong>g manual h<strong>and</strong>l<strong>in</strong>g safe ............................................. 2.3What is manual h<strong>and</strong>l<strong>in</strong>g? ............................................................................2.32.2 Identify<strong>in</strong>g hazards .............................................................. 2.4List <strong>the</strong> jobs <strong>and</strong> tasks ................................................................................. 2.4Identify<strong>in</strong>g hazardous manual h<strong>and</strong>l<strong>in</strong>g ....................................................... 2.4Checklist for hazardous jobs <strong>and</strong> tasks ......................................................... 2.4Common hazards <strong>to</strong> check for .......................................................................2.52.3 Assess<strong>in</strong>g manual h<strong>and</strong>l<strong>in</strong>g hazards .................................. 2.6Th<strong>in</strong>gs <strong>to</strong> th<strong>in</strong>k about ................................................................................... 2.6Fac<strong>to</strong>rs that <strong>in</strong>crease <strong>the</strong> risk ........................................................................ 2.6Scor<strong>in</strong>g <strong>the</strong> risk .............................................................................................2.7i


2.4 Good practice for manual h<strong>and</strong>l<strong>in</strong>g ................................... 2.8Worksurface heights .................................................................................... 2.8Table tasks – workspace design ..................................................................2.10H<strong>and</strong>l<strong>in</strong>g heavy timber ................................................................................ 2.11H<strong>and</strong>l<strong>in</strong>g small-sized timber ........................................................................2.12H<strong>and</strong>l<strong>in</strong>g of <strong>to</strong>ol<strong>in</strong>g for woodwork<strong>in</strong>g mach<strong>in</strong>es ...........................................2.14H<strong>and</strong>l<strong>in</strong>g panel products ............................................................................. 2.152.5 Fur<strong>the</strong>r read<strong>in</strong>g ...................................................................2.16Section Three: Lockout3.1 Lock<strong>in</strong>g out mach<strong>in</strong>ery ..........................................................3.3What is lockout? ............................................................................................3.3What <strong>the</strong> law says .........................................................................................3.33.2 Identify<strong>in</strong>g hazards .............................................................. 3.4Do you need a lockout? ................................................................................ 3.43.3 Assess<strong>in</strong>g lockout hazards ................................................. 3.43.4 Good practice for lockout ...................................................3.5Five steps <strong>to</strong> lockout .....................................................................................3.5Work<strong>in</strong>g on energised equipment ................................................................ 3.6Group lockout procedure ............................................................................. 3.6Lockouts across shifts ................................................................................. 3.6Releas<strong>in</strong>g mach<strong>in</strong>es from lockout ................................................................ 3.6O<strong>the</strong>r hazards ..............................................................................................3.73.5 Workplace responsibilities for lockout ............................ 3.8Employer responsibilities ............................................................................ 3.8Supervisor responsibilities .......................................................................... 3.8Employee responsibilities ........................................................................... 3.83.6 Fur<strong>the</strong>r read<strong>in</strong>g ................................................................... 3.8Section Four: Mach<strong>in</strong>e guard<strong>in</strong>g4.1 Mak<strong>in</strong>g mach<strong>in</strong>e operations safe ..........................................4.3What is mach<strong>in</strong>e guard<strong>in</strong>g? ...........................................................................4.3What <strong>the</strong> law says ........................................................................................ 4.4Shar<strong>in</strong>g responsibility ..................................................................................4.54.2 Identify<strong>in</strong>g hazards .............................................................. 4.6Look<strong>in</strong>g for risks ........................................................................................... 4.6Common hazards <strong>to</strong> check for .......................................................................4.74.3 Assess<strong>in</strong>g mach<strong>in</strong>e hazards ................................................. 4.8Risk assessment process ............................................................................. 4.84.4 Good practice for mach<strong>in</strong>e guard<strong>in</strong>g ................................. 4.9Us<strong>in</strong>g mach<strong>in</strong>e guards .................................................................................. 4.9Adm<strong>in</strong>istrative controls .............................................................................. 4.224.5 Mach<strong>in</strong>e operat<strong>in</strong>g checklist ............................................. 4.26Section Five: Fur<strong>the</strong>r <strong>in</strong>formation5.1 Fur<strong>the</strong>r Information .............................................................5.3ii


IntroductionTimber process<strong>in</strong>g can be a hazardous bus<strong>in</strong>ess. From <strong>the</strong> use of mach<strong>in</strong>ery, work<strong>in</strong>g a<strong>the</strong>ights <strong>and</strong> h<strong>and</strong>l<strong>in</strong>g heavy materials <strong>to</strong> exposure <strong>to</strong> dust, noise <strong>and</strong> chemicals, potentiallyharmful events can happen at any time. These events can affect a person’s health, forexample caus<strong>in</strong>g <strong>the</strong>m <strong>to</strong> suffer sk<strong>in</strong> <strong>and</strong> respira<strong>to</strong>ry diseases. They can cause <strong>in</strong>jury such asa loss of f<strong>in</strong>gers or even death. It’s not just staff who may be affected – visi<strong>to</strong>rs, contrac<strong>to</strong>rs,cleaners or anyone on your site can be at risk of <strong>in</strong>jury or illness.For you, workplace accidents can mean:• downtime on <strong>the</strong> fac<strong>to</strong>ry floor• costly repairs <strong>to</strong> damaged mach<strong>in</strong>ery <strong>and</strong> equipment• pay<strong>in</strong>g overtime or f<strong>in</strong>d<strong>in</strong>g replacement workers <strong>to</strong> make up for lost time.For your staff, workplace <strong>in</strong>jury <strong>and</strong> illness can cause <strong>the</strong>m pa<strong>in</strong> <strong>and</strong> suffer<strong>in</strong>g. They may nolonger be able <strong>to</strong> live <strong>the</strong>ir lives <strong>to</strong> <strong>the</strong> fullest, <strong>and</strong> <strong>the</strong>y <strong>and</strong> <strong>the</strong>ir families may have <strong>to</strong> get byon less <strong>in</strong>come.Hav<strong>in</strong>g good work practices can help you <strong>and</strong> your workers <strong>to</strong> avoid <strong>the</strong>se costs.Keep<strong>in</strong>g your workplace safe is good for everyone <strong>and</strong>, by law, you must take all practicablesteps <strong>to</strong> make sure it is. But safety is not just an employer’s problem. Your staff must beadequately tra<strong>in</strong>ed so that <strong>the</strong>y can follow correct work procedures <strong>and</strong> use <strong>the</strong> safeguardsthat you provide.The <strong>in</strong>formation <strong>in</strong> <strong>the</strong>se guidel<strong>in</strong>es will help you <strong>to</strong> identify hazards <strong>in</strong> your workplace <strong>and</strong>give you ideas on how <strong>to</strong> keep your staff <strong>and</strong> visi<strong>to</strong>rs safe at all times. Specifically, <strong>the</strong>seguidel<strong>in</strong>es help you <strong>to</strong>:• identify places where <strong>in</strong>jury or harm could occur• work out how likely it is that <strong>in</strong>jury or harm will happen• put <strong>in</strong> place measures <strong>to</strong> protect your workers <strong>and</strong> your workplace.Follow<strong>in</strong>g <strong>the</strong>se guidel<strong>in</strong>es will give your staff confidence <strong>to</strong> carry out <strong>the</strong>ir work quickly <strong>and</strong>efficiently <strong>and</strong> save you <strong>the</strong> costs of an unsafe workplace.Acknowledgements:Juken Nissho LtdTimber Logistics LtdCarter Holt Harvey LtdTenon LtdCentre for Human Fac<strong>to</strong>rs <strong>and</strong> Ergonomics (COHFE)Department of Labour Occupational <strong>Safety</strong> <strong>and</strong> <strong>Health</strong> (OSH)Accident Compensation Corporation (ACC)iii


Key terms expla<strong>in</strong>edTermExplanation‘All practicable steps’ do<strong>in</strong>g all you reasonably can, tak<strong>in</strong>g <strong>in</strong><strong>to</strong> account:• how severe any <strong>in</strong>jury or harm is likely <strong>to</strong> be• how likely that <strong>in</strong>jury or harm is <strong>to</strong> happen• how much you know about <strong>the</strong> hazard <strong>and</strong> how <strong>to</strong> remove orreduce or control it• how available, effective <strong>and</strong> costly <strong>the</strong> possible safeguards are.Danger zone<strong>the</strong> zone with<strong>in</strong> or around mach<strong>in</strong>ery where <strong>the</strong>re is a potentialhealth <strong>and</strong> safety risk.Guarda physical barrier that prevents or limits people’s access <strong>to</strong> a dangerzone.Hazardanyth<strong>in</strong>g (an activity, arrangement, circumstance, event,occurrence, phenomenon, process, situation or substance) that is anactual or possible cause or source of harm. Hazards may occur <strong>in</strong>sideor outside your workplace. They <strong>in</strong>clude situations where a person’sbehaviour may cause harm <strong>to</strong> <strong>the</strong>mselves or o<strong>the</strong>rs. A person’sbehaviour may be affected by physical or mental fatigue (tiredness),drugs, alcohol, traumatic shock or some o<strong>the</strong>r condition.Interlocka safety device that connects a guard or mach<strong>in</strong>e part with amach<strong>in</strong>e’s control or energy system.Isolationa device that disconnects mach<strong>in</strong>es <strong>and</strong> equipment from all energysources so that <strong>the</strong>y cannot be operated.Lockoutwhere <strong>the</strong> controls of mach<strong>in</strong>ery or equipment have been lockedor have been isolated from <strong>the</strong> energy source, <strong>to</strong> s<strong>to</strong>p <strong>the</strong>m be<strong>in</strong>goperated.Mach<strong>in</strong>eryan eng<strong>in</strong>e, mo<strong>to</strong>r or o<strong>the</strong>r appliance that provides mechanical energyus<strong>in</strong>g sources such as compressed air, fuel combustion, electricity,gas, gaseous products, steam, water <strong>and</strong> w<strong>in</strong>d. Mach<strong>in</strong>ery <strong>in</strong>cludes:• any plant affected by <strong>the</strong> motion created by <strong>the</strong> mach<strong>in</strong>ery• a lift<strong>in</strong>g mach<strong>in</strong>e, a lift<strong>in</strong>g vehicle, a trac<strong>to</strong>r <strong>and</strong> a mach<strong>in</strong>e thatuses, <strong>in</strong> some way, human effort <strong>to</strong> create motion.Reasonable reach<strong>the</strong> distance ‘most people’ can safely reach under, over, around or<strong>in</strong><strong>to</strong> any hazardous area.v


Riskhow severe an <strong>in</strong>jury or damage is likely <strong>to</strong> be, how likely it willhappen <strong>and</strong> how frequent <strong>the</strong> exposure is <strong>to</strong> <strong>the</strong> hazard.Safe by positionwhere <strong>the</strong> danger zone can’t be accessed – it is ei<strong>the</strong>r out ofreasonable reach or <strong>in</strong> a position that is not a hazard.Significant hazarda hazard that has caused, or could cause, serious harm.vi


Section OneSafe Access1:1


1:2


1.1 Mak<strong>in</strong>g workplace accesssafeWhat is safe access?Mak<strong>in</strong>g access <strong>to</strong> <strong>and</strong> around your workplace safe is about keep<strong>in</strong>g people away fromhazards, whe<strong>the</strong>r <strong>the</strong>y’re work<strong>in</strong>g for you or just visit<strong>in</strong>g. Safe access is concerned withall <strong>the</strong> places people need <strong>to</strong> go <strong>to</strong> do <strong>the</strong>ir work. It <strong>in</strong>cludes vehicle access, walkways,h<strong>and</strong>rails, slippery surfaces, conf<strong>in</strong>ed spaces <strong>and</strong> work carried out at heights.What <strong>the</strong> law saysThe law requires employers <strong>to</strong> keep a safe workplace. Follow<strong>in</strong>g <strong>the</strong> good safe accessguidel<strong>in</strong>es set out <strong>in</strong> this section will help you <strong>to</strong> meet your legal requirements under:• The <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Act 1992Employers are required <strong>to</strong> identify hazards <strong>in</strong> <strong>the</strong>ir workplace <strong>and</strong> do all <strong>the</strong>y can <strong>to</strong>ensure <strong>the</strong> safety of employees <strong>and</strong> o<strong>the</strong>rs <strong>in</strong> <strong>the</strong> workplace• The <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Regulations 1995– Overcrowd<strong>in</strong>g– Conta<strong>in</strong>ers of liquids– Loose but enclosed materials– Raised objects– Clean<strong>in</strong>g, ma<strong>in</strong>tenance or repair of mach<strong>in</strong>ery– Heights of more than 3m– Scaffold<strong>in</strong>g– Excavations• Codes of Practice– Code of Practice for Timber Stack<strong>in</strong>g, Packet<strong>in</strong>g <strong>and</strong> Transportation– <strong>Guide</strong>l<strong>in</strong>es for <strong>the</strong> Prevention of Falls1:3


1.2 Identify<strong>in</strong>g hazardsIdentify<strong>in</strong>g hazards <strong>in</strong> your workplace is <strong>the</strong> first step <strong>in</strong> mak<strong>in</strong>g sure your staff are work<strong>in</strong>g <strong>in</strong>a safe environment. You need <strong>to</strong> work through a process <strong>to</strong> identify all <strong>the</strong> access hazards <strong>in</strong>your workplace <strong>and</strong> decide how likely it is that any harm or <strong>in</strong>jury will happen.A process <strong>to</strong> deal with hazardsIdentify all access hazardsAssess <strong>the</strong> risksElim<strong>in</strong>ate, isolate or m<strong>in</strong>imise hazards <strong>and</strong> risksLook<strong>in</strong>g for risksTo identify hazards, walk through all your bus<strong>in</strong>ess’s work areas, <strong>in</strong>clud<strong>in</strong>g access ways,<strong>and</strong> look for <strong>the</strong> areas where <strong>in</strong>jury or harm could happen. Divide your workplace <strong>in</strong><strong>to</strong>manageable areas <strong>and</strong> identify <strong>the</strong> hazards for each area.Ask your staff <strong>to</strong> do <strong>the</strong> same but have <strong>the</strong>m read <strong>the</strong>se guidel<strong>in</strong>es <strong>to</strong> get an idea of what <strong>to</strong>look for.Common hazards <strong>to</strong> check forAccess hazards are likely <strong>to</strong> fall <strong>in</strong><strong>to</strong> <strong>the</strong>se categories:Potential hazardSteps/stairsConveyorsLog s<strong>to</strong>rageAccess waysPortable laddersWalkwaysService platformsRaised walkwaysTarp<strong>in</strong>g wood stacksTimber stack<strong>in</strong>gMov<strong>in</strong>g vehiclesLikely <strong>to</strong> happen…• slips, trips or falls• slips, trips or falls• fall<strong>in</strong>g logs from unstable stacks• slips, trips or falls• falls• slips on slippery surfaces• slips <strong>and</strong> falls• falls• slips <strong>and</strong> falls• collapse of unstable stacks• crush<strong>in</strong>g, be<strong>in</strong>g run over1:4


1.3 Assess<strong>in</strong>g access hazardsIn assess<strong>in</strong>g possible risks you’re work<strong>in</strong>g out how likely it is that hazardous events willhappen. This allows you <strong>to</strong> put your efforts <strong>in</strong><strong>to</strong> deal<strong>in</strong>g with those hazards <strong>and</strong> fac<strong>to</strong>rs thatare most likely <strong>to</strong> cause <strong>in</strong>jury or harm.See <strong>the</strong> ACC website (www.acc.co.<strong>nz</strong>) for ideas on identify<strong>in</strong>g <strong>and</strong> assess<strong>in</strong>g hazards. Lookunder ‘Injury prevention’, <strong>the</strong>n ‘Safe at work’. See also <strong>the</strong> OSH website – www.dol.<strong>govt</strong>.<strong>nz</strong>.Look under ‘<strong>Safety</strong> <strong>and</strong> health at work’.1:5


1.4 Good practice for safeaccessWhere you identify hazards <strong>and</strong> decide that <strong>the</strong>re is a strong possibility of <strong>the</strong>ir caus<strong>in</strong>gillness or harm, you need <strong>to</strong> work through a process <strong>to</strong> control <strong>the</strong>m.Priorities for good practiceWhat do you need <strong>to</strong> do <strong>to</strong> elim<strong>in</strong>ate, isolate or m<strong>in</strong>imise <strong>the</strong> hazard?What safeguards can you apply?What work practices <strong>and</strong> processes need <strong>to</strong> change?The best th<strong>in</strong>g you can do <strong>to</strong> improve workplace safety is <strong>to</strong> elim<strong>in</strong>ate hazards. If that’snot possible, you should th<strong>in</strong>k about how you can isolate <strong>the</strong>m, which may <strong>in</strong>clude us<strong>in</strong>gsafeguards. If that’s not possible, you need <strong>to</strong> th<strong>in</strong>k about how you can change workpractices <strong>and</strong> processes <strong>to</strong> m<strong>in</strong>imise <strong>in</strong>jury, harm or illness.You need <strong>to</strong> list all <strong>the</strong> hazards you identify <strong>in</strong> your workplace <strong>in</strong> a hazard register. In <strong>the</strong>register you also need <strong>to</strong> note <strong>the</strong> hazard controls you decide on.See sections 7 <strong>to</strong> 10 of <strong>the</strong> <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Act 1992.Access <strong>to</strong> your siteIf you have hazards <strong>in</strong> your workplace, you need some way of controll<strong>in</strong>g who can enteryour site. People should not be able <strong>to</strong> just walk <strong>in</strong> or around your site, <strong>and</strong> vehicles <strong>and</strong>pedestrians need <strong>to</strong> be kept separate as much as possible. The amount of security you needwill depend on what <strong>the</strong> hazards are <strong>and</strong> how likely <strong>the</strong>y are <strong>to</strong> cause <strong>in</strong>jury or harm.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksGett<strong>in</strong>g on<strong>to</strong> your siteYou need <strong>to</strong> restrict access <strong>to</strong> your site. Use signs <strong>to</strong> direct visi<strong>to</strong>rs <strong>to</strong> your office where <strong>the</strong>ycan sign a visi<strong>to</strong>r’s book <strong>and</strong>, where you can expla<strong>in</strong> any danger zones <strong>and</strong> provide <strong>the</strong>mwith personal protective equipment. Such gear may <strong>in</strong>clude Hi Viz cloth<strong>in</strong>g, hard hats, safetyglasses <strong>and</strong> suitable protective footwear.Once on your siteMake sure visi<strong>to</strong>rs comply with site safety rules <strong>and</strong>/or are guided at all times by staff whoknow what <strong>the</strong> hazards <strong>and</strong> emergency procedures are. You need <strong>to</strong> limit who can get <strong>to</strong>areas where mach<strong>in</strong>es are operat<strong>in</strong>g. You also need <strong>to</strong> have workplace rules <strong>and</strong> procedures<strong>in</strong> place so that opera<strong>to</strong>rs are aware of o<strong>the</strong>r people <strong>in</strong> <strong>the</strong> area.1:6


Restrict access where mach<strong>in</strong>es are work<strong>in</strong>gFall<strong>in</strong>g logs are a possible hazard. Logs need <strong>to</strong> besupported or stacked at a slope of less than 45˚Common areasTh<strong>in</strong>k about provid<strong>in</strong>g safe walkways <strong>to</strong> commonly used areas – such as <strong>to</strong>ilets, mealrooms<strong>and</strong> offices. This can be as simple as pa<strong>in</strong>t<strong>in</strong>g l<strong>in</strong>es on floors <strong>and</strong> roads. Make sure you showvehicle routes <strong>and</strong> walkways on your workplace site plan.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksKeep <strong>the</strong> path of walkways away from your site’s hazard risk areas. Not only will <strong>the</strong>y keepstaff <strong>and</strong> visi<strong>to</strong>rs safe, your operations will run without <strong>in</strong>terruption.ConveyorsThe mov<strong>in</strong>g parts of conveyors can cause accidents. You need <strong>to</strong> provide walkways that avoid<strong>the</strong> hazard areas. See also Section Four of this guide, page 4:12, on guard<strong>in</strong>g of conveyors.hazard!✘A hazard is created by conveyor rollerstransferr<strong>in</strong>g timber across this walkwayHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksImprov<strong>in</strong>g practicesS<strong>to</strong>p your staff walk<strong>in</strong>g between conveyors, mov<strong>in</strong>g wood or timber. You should planpathways <strong>to</strong> go around or over <strong>the</strong> conveyor area. Or use an <strong>in</strong>terlocked gate.1:7


Staff run <strong>the</strong> risk of slips, trips <strong>and</strong> falls if <strong>the</strong>y walk on conveyors. You need <strong>to</strong> s<strong>to</strong>p workersdo<strong>in</strong>g this unless <strong>the</strong> conveyor has been locked out (see Section Three of <strong>the</strong>se guidel<strong>in</strong>eson lockout).Improv<strong>in</strong>g protectionProvide safe walkways wherever staff need <strong>to</strong> go regularly <strong>to</strong> carry out <strong>the</strong>ir tasks. If you havewalkways over mach<strong>in</strong>ery <strong>the</strong>y must have h<strong>and</strong>rails. See <strong>the</strong> section on h<strong>and</strong>rails, page 1:14.✘Without h<strong>and</strong>rails your staff could fall✔Provid<strong>in</strong>g h<strong>and</strong>rails lessens <strong>the</strong> risk of fall<strong>in</strong>gUse exp<strong>and</strong>ed mesh (or someth<strong>in</strong>g similar) under cha<strong>in</strong> conveyors <strong>to</strong> allow safe access.O<strong>the</strong>rwise you should provide walkways over <strong>the</strong> conveyors.SurfacesPolished, smooth or wet floor surfaces <strong>in</strong>crease <strong>the</strong> risk of staff slipp<strong>in</strong>g.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksNon-slip surfac<strong>in</strong>gMake sure floor<strong>in</strong>g surfaces around your workplace are non-slip. They need <strong>to</strong> be:• tread plate• exp<strong>and</strong>ed mesh, or• some o<strong>the</strong>r non-slip product.If you use wooden walkways you need <strong>to</strong> apply a non-slip surface, especially if <strong>the</strong>y’re likely<strong>to</strong> get wet.See <strong>the</strong> st<strong>and</strong>ards for non-slip surfaces (AS/NZS 3661.1 : 1993 : Requirements <strong>and</strong> AS/NZS3661.2 : 1994 : <strong>Guide</strong> <strong>to</strong> reduction of slip hazards) for more detailed <strong>in</strong>formation.Work at heightsYou should carry out a risk assessment for all work at heights. In decid<strong>in</strong>g on preventionmeasures you should first consider us<strong>in</strong>g permanent platforms, h<strong>and</strong>rails <strong>and</strong> stairs. O<strong>the</strong>rfall protection measures must be taken where your employees are at risk of a fall of 3m ormore. See <strong>Guide</strong>l<strong>in</strong>es for <strong>the</strong> Prevention of Falls available from OSH.1:8


How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksFall protection measures can <strong>in</strong>clude:• permanent platforms, h<strong>and</strong>rails <strong>and</strong> stairs• scaffold<strong>in</strong>g or edge protection• cherry picker, scissor lift or approved forklift cage• approved fall restra<strong>in</strong>t or fall arrest systems (<strong>in</strong>clud<strong>in</strong>g a rescue plan).You need <strong>to</strong> have procedures for work<strong>in</strong>g safely at heightsLaddersThere is a range of safety measures you need <strong>to</strong> th<strong>in</strong>k about when us<strong>in</strong>g ladders.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksPortable laddersBe<strong>in</strong>g <strong>the</strong> most widely used ladder <strong>in</strong> <strong>the</strong> <strong>in</strong>dustry, it’s likely that your workplace usesstepladders. Stepladders must be robust <strong>and</strong> must meet <strong>the</strong> requirements of <strong>the</strong> st<strong>and</strong>ardAS/NZS 1892.1 : 1996 : Portable ladders – metal.Stepladders should only be used:• for places staff need <strong>to</strong> go <strong>to</strong> only every so often• where both h<strong>and</strong>s are free• where staff need <strong>to</strong> be no higher than two steps down from <strong>the</strong> <strong>to</strong>p.M<strong>in</strong>d your stepStaff should always face <strong>the</strong> stepladder tread when go<strong>in</strong>g up <strong>and</strong> down a ladder.1:9


✘A portable extension ladder is not a safeoption <strong>in</strong> some situations✔A portable platform is a much safer optionExtension ladders must be secured at all times – be<strong>in</strong>g held by ano<strong>the</strong>r worker until <strong>the</strong>ladder is tied <strong>and</strong> extended past <strong>the</strong> work area. Staff should go no higher than four rungsfrom <strong>the</strong> <strong>to</strong>p <strong>and</strong> <strong>the</strong> slope of <strong>the</strong> ladder should be no greater than one horizontal unit <strong>to</strong> fourvertical units (see figure below). Never use <strong>the</strong> ladder horizontally as a work platform.Extend1mFourOneNote: You must put <strong>in</strong> place a system <strong>to</strong> prevent falls where work is undertaken with<strong>in</strong> 2m ofa roof edge.Ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g portable laddersRegularly check that your portable ladders meet <strong>the</strong> requirements of st<strong>and</strong>ard AS/NZS 1892.5: 2000 : Portable ladders – selection, safe use <strong>and</strong> care. You should look for:• bent stiles (<strong>the</strong> ladder frame) <strong>and</strong> steps• stays not <strong>in</strong> position• rubber feet miss<strong>in</strong>g or worn• stress fractures at rivet po<strong>in</strong>ts• loose rivets – <strong>the</strong> telltale sign is a dark circle around <strong>the</strong> rivet head• staff exceed<strong>in</strong>g <strong>the</strong> safe work<strong>in</strong>g load for <strong>the</strong> ladder.Make sure you keep a record of your checks <strong>and</strong> ma<strong>in</strong>tenance.1:10


Fixed tread or stepladdersThese ladders should:• have treads of at least 100mm <strong>in</strong> depth• have treads no fur<strong>the</strong>r apart than 200–250mm• be pitched at an angle of 60–70 degrees• have h<strong>and</strong>rails fitted at least 900mm above <strong>the</strong> front edge of <strong>the</strong> tread.Fixed rung laddersThese ladders should:• have rungs of 400mm <strong>in</strong> width• have <strong>the</strong> rungs no fur<strong>the</strong>r apart than 250–300mm• be pitched at an angle of 70–90 degrees.Fixed rung ladders should be no higher than 9m (without a platform). Ladders over 6m tallrequire cage guards or hoops. These safety features must be fitted at 2.5m from <strong>the</strong> ground.The <strong>to</strong>p part of <strong>the</strong> ladder frame must be 1m above <strong>the</strong> po<strong>in</strong>t <strong>the</strong> worker is go<strong>in</strong>g <strong>to</strong> step off.If you can’t fit cage guards or hoops you need <strong>to</strong> use a fall arrest system, eg, harnesses.Fenc<strong>in</strong>gFenc<strong>in</strong>g is a good safety measure <strong>to</strong> limit people com<strong>in</strong>g <strong>in</strong><strong>to</strong> contact with major hazardareas.✘H<strong>and</strong>rails are useful for identify<strong>in</strong>g accessways <strong>and</strong> prevent<strong>in</strong>g falls but must not beused <strong>to</strong> prevent access <strong>to</strong> uncontrolledhazards✔Fenc<strong>in</strong>g is useful <strong>in</strong> prevent<strong>in</strong>g access <strong>to</strong>areas with multiple hazardsHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTo meet requirements fenc<strong>in</strong>g should:• be 1.8m high• have a gap of no more than 200mm from <strong>the</strong> ground• have <strong>in</strong>terlocked gates that s<strong>to</strong>p mach<strong>in</strong>ery before staff enter <strong>the</strong> area or o<strong>the</strong>rapproved methods of prevent<strong>in</strong>g access.See AS 4024.1 : 1996 : Safeguard<strong>in</strong>g of mach<strong>in</strong>ery – general pr<strong>in</strong>ciples.1:11


Th<strong>in</strong>k aga<strong>in</strong>On <strong>the</strong>ir own, h<strong>and</strong>rails are not acceptable fences for prevent<strong>in</strong>g people com<strong>in</strong>g <strong>in</strong><strong>to</strong>contact with a significant hazard.StairsIf your staff are work<strong>in</strong>g <strong>in</strong> an area that is off <strong>the</strong> ground, you need <strong>to</strong> provide stairs as a ma<strong>in</strong>means of access.✘✔How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTo meet requirements, stairs must:• have go<strong>in</strong>gs that are between 215 <strong>and</strong> 305mm <strong>in</strong> depth, with each go<strong>in</strong>g <strong>the</strong> samedepth• have rises that are between 150 <strong>and</strong> 215mm, with each rise <strong>the</strong> same height• be built <strong>to</strong> an angle of between 26.5 <strong>and</strong> 45 degrees• have a h<strong>and</strong>rail on <strong>the</strong> open side of <strong>the</strong> stair – you need two h<strong>and</strong>rails if <strong>the</strong> stairs areover a metre wide or open on both sides.1:12


Rise – <strong>the</strong> gap from one step <strong>to</strong> <strong>the</strong> nextGo<strong>in</strong>g – <strong>the</strong> depth of a treadGo<strong>in</strong>gTreadRiseNote – Overlap oftread should notreduce <strong>the</strong> ‘go<strong>in</strong>g’below acceptabledistancesSee <strong>the</strong> st<strong>and</strong>ard NZS/AS 1657 : 1992 : Fixed platforms, walkways, stairways <strong>and</strong> ladders– design, construction <strong>and</strong> <strong>in</strong>stallation for more <strong>in</strong>formation on requirements for stairs.This figure shows <strong>the</strong> range of acceptable features for stairs, eg, a stairway with a rise of170mm must have a go<strong>in</strong>g of 265–280mm. See NZS/AS 1657 for more detail.215215215–225210225–240200Rise (mm)190180170265–280250–265240–250Go<strong>in</strong>g (mm)160280–3001503001:13


H<strong>and</strong>railsYou can use h<strong>and</strong>rails <strong>to</strong> identify safe walkways around your workplace. However, you cannotuse h<strong>and</strong>rails as <strong>the</strong> only means <strong>to</strong> prevent people com<strong>in</strong>g <strong>in</strong><strong>to</strong> contact with a hazard.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTo meet key requirements, h<strong>and</strong>rails should:• be 900–1100mm high• have a mid rail• have a 150mm kickboard if <strong>the</strong>re is any risk of items fall<strong>in</strong>g off walkways <strong>and</strong> <strong>in</strong>jur<strong>in</strong>gsomeone.✘Posts <strong>and</strong> cha<strong>in</strong>s✔H<strong>and</strong>rails must be solidly built with mid rail<strong>and</strong>, where needed, kickboardA firm foundationPosts with cha<strong>in</strong>s are not acceptable. H<strong>and</strong>rails <strong>and</strong> mid rails (<strong>and</strong> where needed,kickboards) should be built out of solid materials.If you need <strong>to</strong> provide access for forklifts or loaders <strong>in</strong> areas such as load<strong>in</strong>g bays, youshould use ei<strong>the</strong>r:• h<strong>in</strong>ged fences that open <strong>in</strong>wards, or• removable or slid<strong>in</strong>g rails.See <strong>the</strong> OSH <strong>Guide</strong>l<strong>in</strong>es for <strong>the</strong> Prevention of Falls <strong>and</strong> <strong>the</strong> New Zeal<strong>and</strong> Build<strong>in</strong>g Code formore <strong>in</strong>formation on h<strong>and</strong>rails.Forklift cagesIf you need staff <strong>to</strong> work at heights, us<strong>in</strong>g forklift cages as a work platform can s<strong>to</strong>p <strong>the</strong>mfall<strong>in</strong>g.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksWhen used as a platform <strong>the</strong> forklift cage must meet <strong>the</strong> requirements of st<strong>and</strong>ards:• NZS/ANSI/AMSE B56.1 : 2000 : <strong>Safety</strong> st<strong>and</strong>ard for low lift <strong>and</strong> high lift trucks• AS 2359.1 : 1995 : Powered <strong>in</strong>dustrial trucks – general requirements1:14


To meet key requirements, <strong>the</strong> forklift cage must:• be able <strong>to</strong> carry a load of 250kg• be locked on <strong>to</strong> <strong>the</strong> forks <strong>to</strong> s<strong>to</strong>p it slipp<strong>in</strong>g off• be solidly built• be less than 1200 x 1200mm with a 100mm kickboard• have a 2m high mesh screen between <strong>the</strong> worker <strong>and</strong> mast – with a 100mm gapbetween <strong>the</strong> mesh <strong>and</strong> mast• have mesh that meets <strong>the</strong> requirements of AS 4024• have 900–1100mm high front <strong>and</strong> sides <strong>and</strong> a h<strong>and</strong>rail <strong>in</strong>side <strong>the</strong> cage• have an access gate that sw<strong>in</strong>gs <strong>in</strong>ward, spr<strong>in</strong>gs shut <strong>and</strong> has a suitable catch.This eng<strong>in</strong>eer-certified forklift cage features an extended rail <strong>to</strong> which workers can attach harnesses whilespread<strong>in</strong>g tarps on timber stacksBewareForklift drivers need <strong>to</strong> stay on <strong>the</strong> vehicle while staff are attached <strong>to</strong> <strong>the</strong> cage <strong>and</strong>have a system for communicat<strong>in</strong>g with those staff.1:15


Tarp<strong>in</strong>g of timber trucksAs timber or chip trucks are over 3m high, staff are likely <strong>to</strong> be seriously <strong>in</strong>jured if <strong>the</strong>y fallwhile cover<strong>in</strong>g <strong>the</strong>m with tarps. You need <strong>to</strong> take all possible steps <strong>to</strong> prevent falls.As well as general slips <strong>and</strong> trips, <strong>the</strong> sorts of th<strong>in</strong>gs likely <strong>to</strong> cause a fall <strong>in</strong>clude:• uneven surfaces• w<strong>in</strong>d• slippery surfaces created by tarps or plastic-wrapped timber.hazard!✘Tarp<strong>in</strong>g timber <strong>in</strong> w<strong>in</strong>dy conditions can cause ahazardHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTh<strong>in</strong>k about us<strong>in</strong>g curta<strong>in</strong> siders <strong>in</strong>stead.✔Curta<strong>in</strong> siders1:16


Or au<strong>to</strong>matic tarp<strong>in</strong>g systems, which do not require opera<strong>to</strong>rs <strong>to</strong> get on <strong>the</strong> load.These safety measures elim<strong>in</strong>ate <strong>the</strong> risk of falls.To lessen <strong>the</strong> risk of falls, th<strong>in</strong>k about us<strong>in</strong>g fixed or portable tarp<strong>in</strong>g frames. These framesneed <strong>to</strong> be designed by eng<strong>in</strong>eers.1:17


Staff have <strong>to</strong> wear full harnesses <strong>to</strong> work on <strong>the</strong>se frames. While <strong>the</strong>se frames improve safetyyou must also make sure your staff are fully tra<strong>in</strong>ed <strong>and</strong> supervised <strong>in</strong> fall prevention. Suchtra<strong>in</strong><strong>in</strong>g needs <strong>to</strong> <strong>in</strong>clude a detailed emergency plan of action if someone falls.Timber stack<strong>in</strong>gUnstable stacks of timber are possible hazards. Staff can be <strong>in</strong>jured while work<strong>in</strong>g on <strong>to</strong>p ofunstable stacks that collapse, as can anyone work<strong>in</strong>g nearby.hazard!✘A hazard is created by timber stacked a<strong>the</strong>ights of more than four times <strong>the</strong> base✘Us<strong>in</strong>g tiers <strong>to</strong> stack timber at more than fourtimes <strong>the</strong> base does not avoid <strong>the</strong> hazard. Staffare still at risk when stack<strong>in</strong>g <strong>and</strong> unstack<strong>in</strong>gHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksMake sure timber stacks are stable on level ground with solid bearers. The height of a stackmust not be more than four times its base. This applies <strong>to</strong> all timber stacks, eg, it <strong>in</strong>cludesstacks <strong>in</strong> <strong>the</strong> open <strong>and</strong> <strong>in</strong> dry sheds. It also applies <strong>to</strong> plastic-wrapped timber packs.1:18


Maximum height 4.4mBase1.1mWhen plac<strong>in</strong>g fillets <strong>in</strong> packs, make sure you comply with <strong>the</strong> Code of Practice for TimberStack<strong>in</strong>g, Packet<strong>in</strong>g <strong>and</strong> Transportation as this also helps <strong>the</strong> stack stability.✔Safely stacked timberYou may be able <strong>to</strong> <strong>in</strong>crease <strong>the</strong> stack height if you strap smaller packs <strong>to</strong>ge<strong>the</strong>r. Suchstrapp<strong>in</strong>g doubles <strong>the</strong> base measure, which <strong>in</strong>creases <strong>the</strong> height you can stack.See <strong>the</strong> Code of Practice for Timber Stack<strong>in</strong>g, Packet<strong>in</strong>g <strong>and</strong> Transportation.1:19


Isolation <strong>and</strong> lockoutStaff can be killed or seriously <strong>in</strong>jured if mach<strong>in</strong>ery or equipment is not properly locked outbefore work<strong>in</strong>g on it, for example when fix<strong>in</strong>g, clean<strong>in</strong>g or ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g it.Isolation or lockout devices are safety devices that are connected <strong>to</strong> a mach<strong>in</strong>e’s control orpower source. They prevent mach<strong>in</strong>es be<strong>in</strong>g started. Such devices improve <strong>the</strong> safety of yourworkplace.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksMake sure mach<strong>in</strong>ery such as conveyors are fitted with isolation measures that prevent <strong>the</strong>mach<strong>in</strong>e be<strong>in</strong>g started while someone is work<strong>in</strong>g on it.Keep talk<strong>in</strong>gGood communication between workers (so that everyone <strong>in</strong> a work area knows whereeach person is) is vital. Everyone work<strong>in</strong>g on or around <strong>the</strong> mach<strong>in</strong>e must havepersonally locked out <strong>the</strong> mach<strong>in</strong>e.ExampleGood health <strong>and</strong> safety systems, <strong>in</strong>clud<strong>in</strong>g goodcommunication, are needed <strong>to</strong> ensure a loader driverdoesn’t load logs on<strong>to</strong> a s<strong>to</strong>pped conveyor while it’s be<strong>in</strong>gchecked by ano<strong>the</strong>r workerIf you have areas <strong>in</strong> your workplace where <strong>the</strong>re are a number of potential hazards, th<strong>in</strong>kabout us<strong>in</strong>g fenc<strong>in</strong>g with <strong>in</strong>terlocked gates <strong>to</strong> restrict <strong>the</strong> number of people enter<strong>in</strong>g.✔Interlocked gates with warn<strong>in</strong>g signSee Section Three of <strong>the</strong>se guidel<strong>in</strong>es on lockout for more <strong>in</strong>formation on isolation <strong>and</strong><strong>in</strong>terlock<strong>in</strong>g measures.1:20


Confi ned spacesDon’t overlook conf<strong>in</strong>ed spaces <strong>in</strong> your workplace. Lack of oxygen, <strong>in</strong> particular, can be ahazard <strong>in</strong> <strong>the</strong>se areas.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksFirst, identify all <strong>the</strong> conf<strong>in</strong>ed spaces <strong>in</strong> your workplace. Then put <strong>in</strong> place controls <strong>to</strong> limitwho can enter <strong>the</strong>se spaces <strong>to</strong> only those staff hold<strong>in</strong>g a conf<strong>in</strong>ed space entry permit.The st<strong>and</strong>ard AS/NZS 2865: 2001 : Safe work<strong>in</strong>g <strong>in</strong> a conf<strong>in</strong>ed space <strong>and</strong> OSH guidel<strong>in</strong>eshave detailed <strong>in</strong>formation on work<strong>in</strong>g <strong>in</strong> conf<strong>in</strong>ed spaces.Limit who can enter conf<strong>in</strong>ed spacesTo meet <strong>the</strong> key requirements, work <strong>in</strong> conf<strong>in</strong>ed spaces should:• be identified as such• be controlled by a conf<strong>in</strong>ed space entry system• have ventilation <strong>and</strong> atmosphere moni<strong>to</strong>red• have protective equipment (<strong>in</strong>clud<strong>in</strong>g breath<strong>in</strong>g equipment) available• be carried out by fully tra<strong>in</strong>ed employees• have a rescue system <strong>in</strong> place.Generally, if you need staff <strong>to</strong> carry out work <strong>in</strong> a conf<strong>in</strong>ed space you should have ano<strong>the</strong>rtra<strong>in</strong>ed worker watch<strong>in</strong>g or supervis<strong>in</strong>g <strong>the</strong> work.Someth<strong>in</strong>g <strong>in</strong> <strong>the</strong> airBe aware of o<strong>the</strong>r hazards, such as weld<strong>in</strong>g, <strong>in</strong> conf<strong>in</strong>ed spaces. You need <strong>to</strong> payspecial attention <strong>to</strong> areas such as copper, chrome <strong>and</strong> arsenic plants where <strong>the</strong>weld<strong>in</strong>g of contam<strong>in</strong>ated mach<strong>in</strong>ery can produce <strong>to</strong>xic fumes.1:21


SignageDon’t rely on signs alone <strong>to</strong> deal with hazards <strong>in</strong> your workplace. Signage can only be usedas a means of m<strong>in</strong>imis<strong>in</strong>g a hazard.But if you’re unable <strong>to</strong> lessen a hazard risk <strong>in</strong> any o<strong>the</strong>r way, <strong>the</strong> very least you need <strong>to</strong> do isput up warn<strong>in</strong>g signs.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksYou can use signs that are symbolic (that use simple pictures) or that use words, or a mixtureof both.Signs should be:• appropriate• easy <strong>to</strong> see• short, clear <strong>and</strong> easy <strong>to</strong> underst<strong>and</strong>.Appropriate signsYour signs need <strong>to</strong> follow <strong>the</strong> correct colour code conta<strong>in</strong>ed <strong>in</strong> <strong>the</strong> st<strong>and</strong>ard NZS/AS 1319 :1994 : <strong>Safety</strong> signs for <strong>the</strong> occupational environment.ColourRedYellowGreenBlue – lightBlue – dark (when used with a circle)OrangeUse• S<strong>to</strong>p or prohibition, eg, ‘No Entry’• Danger (likely <strong>to</strong> be life threaten<strong>in</strong>g)• To identify fire fight<strong>in</strong>g equipment• Caution or warn<strong>in</strong>g, eg, ‘Fork lifts <strong>in</strong> use’• General safety, eg, ‘First Aid’, ‘Fire Exit• General <strong>in</strong>formation, eg, ‘Toilets’• M<strong>and</strong>a<strong>to</strong>ry (required) action, eg, ‘Wear safetyhelmet’• Hazardous chemicalsO<strong>the</strong>r colours are used <strong>to</strong> identify different pipel<strong>in</strong>es <strong>and</strong> gas cyl<strong>in</strong>ders:• violet – acids• grey – steam• black – dra<strong>in</strong>s• beige – natural gas.Lum<strong>in</strong>ous signs (glow <strong>in</strong> <strong>the</strong> dark), usually green or red, are used <strong>to</strong> mark exits.Easy <strong>to</strong> seeSigns must be easy <strong>to</strong> see. If you’re us<strong>in</strong>g symbols on signs, <strong>the</strong> size of <strong>the</strong> symbol has <strong>to</strong><strong>in</strong>crease by 15mm for every metre of distance that a sign will be viewed. For example, if <strong>the</strong>sign will be viewed from 1m away <strong>the</strong> symbol must be at least 15mm. If it’s 2m, <strong>the</strong> symbolmust be at least 30mm.1:22


If you’re us<strong>in</strong>g letter<strong>in</strong>g, <strong>the</strong> letters must be at least:• 5mm for upper case (capitals)• 4mm for lower case.Make sure signs are well lit <strong>and</strong> are <strong>in</strong> a place where most staff can see <strong>the</strong>m. If you need<strong>to</strong> use a sign <strong>in</strong> an area that’s not well lit, <strong>in</strong>crease <strong>the</strong> size of <strong>the</strong> sign, or <strong>the</strong> size of <strong>the</strong>letter<strong>in</strong>g, by 50 percent.Short, clear <strong>and</strong> easy <strong>to</strong> underst<strong>and</strong>• Use as few words as possible.• Use st<strong>and</strong>ard, widely recognised symbols.• Use specific, not general, messages, eg, ‘Obey <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> Act’ is <strong>to</strong>o generalwhile ‘Wear safety glasses’ is good.Extra marksYou’ll improve <strong>the</strong> safety of your workplace if you mark hazardous areas <strong>and</strong> walkwayswith ei<strong>the</strong>r pa<strong>in</strong>ted or taped yellow strips at least 50mm wide.If you’ve got staff work<strong>in</strong>g at night, highlight features such as stairs, doorways <strong>and</strong>power po<strong>in</strong>ts with lum<strong>in</strong>ous strips. This will help staff f<strong>in</strong>d <strong>the</strong>ir way if you haveblackout.Light<strong>in</strong>gLight<strong>in</strong>g levels <strong>in</strong> your workplace need <strong>to</strong> meet <strong>the</strong> st<strong>and</strong>ards set out <strong>in</strong> AS/NZS 1680.2.4 :1997 : Interior light<strong>in</strong>g <strong>in</strong>dustrial tasks <strong>and</strong> processes.The only exception <strong>to</strong> <strong>the</strong>se st<strong>and</strong>ards is light<strong>in</strong>g around <strong>the</strong> head rig <strong>and</strong> o<strong>the</strong>r operations<strong>in</strong>volved with <strong>the</strong> use of lasers <strong>in</strong> l<strong>in</strong><strong>in</strong>g up timber.Annual check-upConduct a light<strong>in</strong>g survey once a year <strong>to</strong> make sure you’re provid<strong>in</strong>g enough light<strong>in</strong>gat <strong>the</strong> right levels.Emergency light<strong>in</strong>g <strong>and</strong> exitsEmergency light<strong>in</strong>g <strong>in</strong> your workplace needs <strong>to</strong> meet <strong>the</strong> st<strong>and</strong>ards set out <strong>in</strong> <strong>the</strong> NewZeal<strong>and</strong> Build<strong>in</strong>g Code (F6).In case your energy source fails, you need <strong>to</strong> have enough back-up light<strong>in</strong>g <strong>to</strong> light up <strong>the</strong>areas staff need <strong>to</strong> f<strong>in</strong>d <strong>the</strong> emergency exits. You can use lum<strong>in</strong>ous strips on doors <strong>and</strong>stairways.1:23


Prepared <strong>to</strong> power down?Th<strong>in</strong>k about how your mach<strong>in</strong>es will run down if you have an energy failure <strong>and</strong> how<strong>the</strong>y will restart when energy is res<strong>to</strong>red. Check Section Four of this guide on mach<strong>in</strong>eguard<strong>in</strong>g.Personal protective equipmentYou need <strong>to</strong> provide protective gear <strong>to</strong> your staff. The gear <strong>the</strong>y need will depend on <strong>the</strong> tasks<strong>the</strong>y’re carry<strong>in</strong>g out.Personal protective equipment <strong>in</strong>cludes:• safety footwear• hear<strong>in</strong>g protection• overalls• safety glasses• Hi Viz cloth<strong>in</strong>g• dust masks• chemical safety cloth<strong>in</strong>g <strong>and</strong> equipment• chaps for cha<strong>in</strong>saw work• safety helmets• gloves.Note: If you use personal protective equipment, it is likely you will be required <strong>to</strong> moni<strong>to</strong>r<strong>the</strong> health of your employees. For example, moni<strong>to</strong>r<strong>in</strong>g <strong>the</strong> hear<strong>in</strong>g of employees work<strong>in</strong>g<strong>in</strong> noisy environments, <strong>and</strong> moni<strong>to</strong>r<strong>in</strong>g <strong>the</strong> lung function of employees work<strong>in</strong>g <strong>in</strong> dustyenvironments.1:24


Section TwoManual H<strong>and</strong>l<strong>in</strong>g2:1


2:2


2.1 Mak<strong>in</strong>g manual h<strong>and</strong>l<strong>in</strong>gsafeWhat is manual h<strong>and</strong>l<strong>in</strong>g?Manual h<strong>and</strong>l<strong>in</strong>g is any activity that requires a person <strong>in</strong> some way <strong>to</strong> lift, lower, push,pull, carry, throw, restra<strong>in</strong> or hold an object. Manual h<strong>and</strong>l<strong>in</strong>g is a necessary part of timberprocess<strong>in</strong>g, even with <strong>the</strong> amount of mach<strong>in</strong>ery used <strong>in</strong> <strong>the</strong> <strong>in</strong>dustry. In a sawmill this could<strong>in</strong>clude lift<strong>in</strong>g, turn<strong>in</strong>g or pull<strong>in</strong>g timber, chang<strong>in</strong>g mach<strong>in</strong>e knives, free<strong>in</strong>g blockages <strong>and</strong>clean<strong>in</strong>g. Tasks such as fillet<strong>in</strong>g require almost constant manual h<strong>and</strong>l<strong>in</strong>g while o<strong>the</strong>r tasks,such as ma<strong>in</strong>tenance, require only occasional manual h<strong>and</strong>l<strong>in</strong>g.For much of <strong>the</strong> time <strong>the</strong>se tasks are carried out without a problem. It’s only when a taskbecomes more than a person can h<strong>and</strong>le that accidents (<strong>and</strong> <strong>in</strong>jury) can happen. They maybe caused by a sudden effort (push<strong>in</strong>g a heavy load, or by an action carried out over time)such as an action that is repeated <strong>in</strong> an awkward work<strong>in</strong>g position.In almost all cases, <strong>the</strong>re’ll be a number of fac<strong>to</strong>rs that cause a manual h<strong>and</strong>l<strong>in</strong>g <strong>in</strong>jury.To provide a safer workplace you need <strong>to</strong> identify <strong>and</strong> address all <strong>the</strong> ma<strong>in</strong> risk fac<strong>to</strong>rs formanual h<strong>and</strong>l<strong>in</strong>g accidents.2:3


2.2 Identify<strong>in</strong>g hazardsIdentify<strong>in</strong>g hazards <strong>in</strong> your workplace is <strong>the</strong> first step <strong>in</strong> mak<strong>in</strong>g sure your staff are work<strong>in</strong>g <strong>in</strong>a safe environment. You need <strong>to</strong> work through steps <strong>to</strong> identify all <strong>the</strong> jobs that use manualh<strong>and</strong>l<strong>in</strong>g <strong>and</strong> decide how likely it is that any harm or <strong>in</strong>jury will happen.Steps <strong>to</strong> identify<strong>in</strong>g manual h<strong>and</strong>l<strong>in</strong>g hazardsList all jobs <strong>and</strong> tasksIdentify hazardous manual h<strong>and</strong>l<strong>in</strong>gCheck which jobs <strong>and</strong> tasks are at riskThe <strong>in</strong>formation <strong>in</strong> this section on identify<strong>in</strong>g is based on <strong>the</strong> Code of Practice for ManualH<strong>and</strong>l<strong>in</strong>g. See <strong>the</strong> Code for more detail.List <strong>the</strong> jobs <strong>and</strong> tasksA particular job or activity may <strong>in</strong>volve a number of manual h<strong>and</strong>l<strong>in</strong>g tasks. You need <strong>to</strong> list:• all <strong>the</strong> jobs <strong>in</strong> your workplace that <strong>in</strong>volve manual h<strong>and</strong>l<strong>in</strong>g, eg, sawdoc<strong>to</strong>r, grader,tableh<strong>and</strong>• <strong>the</strong>n, all <strong>the</strong> manual h<strong>and</strong>l<strong>in</strong>g tasks <strong>in</strong>cluded <strong>in</strong> <strong>the</strong>se jobs, eg, remov<strong>in</strong>g b<strong>and</strong>sawblades, fold<strong>in</strong>g b<strong>and</strong>saw blades for transport<strong>in</strong>g.Identify<strong>in</strong>g hazardous manual h<strong>and</strong>l<strong>in</strong>gCheck back on your company records <strong>to</strong> see if manual h<strong>and</strong>l<strong>in</strong>g accidents have happened<strong>in</strong> <strong>the</strong> past. Records that will be helpful <strong>in</strong>clude hazard registers, accident registers,<strong>in</strong>vestigation reports <strong>and</strong> health <strong>and</strong> safety audits.Talk <strong>to</strong> your staff. They may give you more ideas on <strong>the</strong> manual h<strong>and</strong>l<strong>in</strong>g tasks <strong>the</strong>y carry out<strong>in</strong> <strong>the</strong>ir jobs <strong>and</strong> what tasks <strong>the</strong>y th<strong>in</strong>k are hazardous.Watch your staff as <strong>the</strong>y carry out manual h<strong>and</strong>l<strong>in</strong>g tasks <strong>to</strong> see if <strong>the</strong>re are any specifichazards. Watch<strong>in</strong>g, check<strong>in</strong>g <strong>and</strong> actually do<strong>in</strong>g <strong>the</strong> tasks yourself (where safe) are goodways <strong>to</strong> ga<strong>the</strong>r <strong>in</strong>formation.Checklist for hazardous jobs <strong>and</strong> tasksYou <strong>the</strong>n need <strong>to</strong> f<strong>in</strong>d out whe<strong>the</strong>r any of <strong>the</strong> manual h<strong>and</strong>l<strong>in</strong>g hazards you identified <strong>in</strong> steptwo are happen<strong>in</strong>g <strong>in</strong> <strong>the</strong> jobs you identified <strong>in</strong> step one. You may f<strong>in</strong>d this checklist helpful…2:4


Are workers… Yes NoTwisted, s<strong>to</strong>oped, or <strong>in</strong> awkward positions, eg, frequently reach<strong>in</strong>g or work<strong>in</strong>g <strong>to</strong> one side orhav<strong>in</strong>g <strong>to</strong> work <strong>in</strong> an awkward position?Work<strong>in</strong>g <strong>in</strong> fixed or rigid positions for a long time, eg, <strong>in</strong>spect<strong>in</strong>g conveyors where little changeof movement is needed?Work<strong>in</strong>g <strong>in</strong> positions that don’t change or where <strong>the</strong> same movements are used over <strong>and</strong> over,eg, flipp<strong>in</strong>g boards for grad<strong>in</strong>g?Us<strong>in</strong>g sudden, uncontrolled or jerky movements, eg, l<strong>in</strong><strong>in</strong>g up boards <strong>in</strong> packets, boardsbreak<strong>in</strong>g dur<strong>in</strong>g transfer?H<strong>and</strong>l<strong>in</strong>g or reach<strong>in</strong>g away from <strong>the</strong> body, eg, stack<strong>in</strong>g <strong>in</strong><strong>to</strong> packets below knuckle or aboveelbow height?Us<strong>in</strong>g a lot of, or constant, force, eg, pull<strong>in</strong>g heavy loads, push<strong>in</strong>g packets?H<strong>and</strong>l<strong>in</strong>g heavy or awkward loads, eg, chang<strong>in</strong>g saw blades?Exposed <strong>to</strong> whole body or upper limb vibration, eg, work<strong>in</strong>g <strong>in</strong> a control cab<strong>in</strong> that is vibratedby surround<strong>in</strong>g mach<strong>in</strong>ery?Work<strong>in</strong>g for long periods without breaks?Record<strong>in</strong>g your f<strong>in</strong>d<strong>in</strong>gsKeep a record of your f<strong>in</strong>d<strong>in</strong>gs <strong>in</strong> a Manual H<strong>and</strong>l<strong>in</strong>g Hazard Control Record (see <strong>the</strong> Code ofPractice for Manual H<strong>and</strong>l<strong>in</strong>g). If you answer ‘yes’ <strong>to</strong> any of <strong>the</strong>se checklist fac<strong>to</strong>rs, you need<strong>to</strong> fur<strong>the</strong>r assess <strong>the</strong> possible hazard (<strong>the</strong> Code can help you do this). If you answer ‘no’ <strong>to</strong>any of <strong>the</strong>se fac<strong>to</strong>rs you don’t need <strong>to</strong> do anyth<strong>in</strong>g more than keep a check on <strong>the</strong> particularwork process as part of your regular review of hazards.Common hazards <strong>to</strong> check forH<strong>and</strong>l<strong>in</strong>g hazards are likely <strong>to</strong> fall <strong>in</strong><strong>to</strong> <strong>the</strong>se categories:Potential hazard areaWorksurfacesPoor table designHeavy timberH<strong>and</strong>l<strong>in</strong>g movements that repeat over <strong>and</strong> over, eg,small timber productsTool<strong>in</strong>gPanel productsLikely <strong>to</strong> happen…• fatigue or <strong>in</strong>jury from overreach<strong>in</strong>g, bend<strong>in</strong>gforward• fatigue or <strong>in</strong>jury from overreach<strong>in</strong>g, bend<strong>in</strong>g,uncomfortable work<strong>in</strong>g positions• fatigue or <strong>in</strong>jury from carry<strong>in</strong>g or mov<strong>in</strong>g weight• fatigue through overuse, faster work pace• <strong>in</strong>jury from sharp blades, heavy loads, h<strong>and</strong>l<strong>in</strong>gdifficulties• fatigue or <strong>in</strong>jury from heavy loads, hard <strong>to</strong> carry orunstable loads, spl<strong>in</strong>ters2:5


2.3 Assess<strong>in</strong>g manual h<strong>and</strong>l<strong>in</strong>ghazardsOnce you’ve identified hazardous manual h<strong>and</strong>l<strong>in</strong>g tasks <strong>in</strong> your workplace, you need <strong>to</strong>assess <strong>the</strong>m <strong>to</strong> see if <strong>the</strong>y’re significant <strong>and</strong> <strong>to</strong> decide what actions you’ll take <strong>to</strong> control<strong>the</strong>m. You should focus first on those hazards that are most likely <strong>to</strong> cause illness <strong>and</strong> <strong>in</strong>jury.Th<strong>in</strong>gs <strong>to</strong> th<strong>in</strong>k aboutYou need <strong>to</strong> th<strong>in</strong>k about a number of fac<strong>to</strong>rs when you assess hazards <strong>to</strong> decide how severe<strong>the</strong>y’re likely <strong>to</strong> be <strong>and</strong> how likely it is that <strong>the</strong> hazards will happen. Th<strong>in</strong>k about:• load or <strong>the</strong> muscle force (human effort) used <strong>to</strong> do <strong>the</strong> task, eg, <strong>the</strong> force required fora grader <strong>to</strong> flip boards• posture <strong>and</strong> workplace layout – how much bend<strong>in</strong>g forward or twist<strong>in</strong>g is required,how far <strong>the</strong> load is from <strong>the</strong> body, how stable <strong>the</strong> worker is when do<strong>in</strong>g <strong>the</strong> task• work conditions <strong>and</strong> environment – is <strong>the</strong>re enough space, is <strong>the</strong> light<strong>in</strong>g good, is <strong>the</strong>floor surface good, is <strong>the</strong> area free from obstacles?• time – consider how many times <strong>the</strong> task is done, or how long it takes <strong>to</strong> do <strong>the</strong> tasksdur<strong>in</strong>g <strong>the</strong> shift, whichever is <strong>the</strong> greater.Fac<strong>to</strong>rs that <strong>in</strong>crease <strong>the</strong> riskThere are five fac<strong>to</strong>rs that can <strong>in</strong>crease <strong>the</strong> risk of manual h<strong>and</strong>l<strong>in</strong>g <strong>in</strong>jury happen<strong>in</strong>g:Fac<strong>to</strong>rLoadEnvironmentPeopleTasksManagementExamples• heavy loads• loads that are difficult <strong>to</strong> h<strong>and</strong>le – such as longboards or plyboard• loads that are difficult <strong>to</strong> move or have sharp edgesor spl<strong>in</strong>ters• slippery floors• steps• noisy work be<strong>in</strong>g done nearby• not enough staff• poorly tra<strong>in</strong>ed staff• large reaches up/down/front/side• h<strong>and</strong>l<strong>in</strong>g over long distances• where <strong>the</strong>re are few breaks from h<strong>and</strong>l<strong>in</strong>g that uses<strong>the</strong> same movements over <strong>and</strong> over• bad impacts of us<strong>in</strong>g piece work payment on workpace <strong>and</strong> shift length• ma<strong>in</strong>tenance programmes• management of workflowSee <strong>the</strong> Code of Practice for Manual H<strong>and</strong>l<strong>in</strong>g for more help <strong>in</strong> identify<strong>in</strong>g <strong>the</strong> fac<strong>to</strong>rs that<strong>in</strong>crease <strong>the</strong> likelihood of hazards happen<strong>in</strong>g <strong>in</strong> your workplace.2:6


Scor<strong>in</strong>g <strong>the</strong> riskUs<strong>in</strong>g a <strong>to</strong>ol <strong>to</strong> score all <strong>the</strong> possible hazards <strong>in</strong> your workplace allows you <strong>to</strong> rank <strong>the</strong>mso that you have a clear picture on what <strong>to</strong> focus on first. Use <strong>the</strong> Risk Score <strong>in</strong> <strong>the</strong> Code ofPractice for Manual H<strong>and</strong>l<strong>in</strong>g <strong>to</strong> rank your identified hazards. Once you’ve completed thisyou can work out which controls you may need <strong>to</strong> use or processes you need <strong>to</strong> change <strong>to</strong> getrid of or lessen <strong>the</strong> hazards.2:7


2.4 Good practice for manualh<strong>and</strong>l<strong>in</strong>gBefore you decide <strong>to</strong> <strong>in</strong>troduce any control <strong>in</strong> your workplace, you need <strong>to</strong> trial it. This willhelp you decide whe<strong>the</strong>r it’s right for your workplace or whe<strong>the</strong>r changes are needed <strong>to</strong> makeit fit better with your equipment <strong>and</strong> processes. Make sure you <strong>in</strong>volve your staff <strong>in</strong> trials,especially those who’ll be <strong>in</strong>volved <strong>in</strong> work<strong>in</strong>g with <strong>the</strong> control. You should also consider anynew hazards your control may <strong>in</strong>troduce.Worksurface heightsStaff can suffer an <strong>in</strong>jury if <strong>the</strong>y’re work<strong>in</strong>g at an awkward height for manual h<strong>and</strong>l<strong>in</strong>g tasks.The risk happens if worksurfaces are:• <strong>to</strong>o low for <strong>the</strong> task, requir<strong>in</strong>g staff <strong>to</strong> bend forward. This is made worse if <strong>the</strong>y have <strong>to</strong>use force as well• <strong>to</strong>o high for <strong>the</strong> task, which can restrict workers’ arm movements <strong>and</strong> may require<strong>the</strong>m <strong>to</strong> reach up. Aga<strong>in</strong>, this is made worse if <strong>the</strong>y have <strong>to</strong> use force as well• <strong>to</strong>o small for <strong>the</strong> task, which can restrict workers’ movements <strong>and</strong> encourage badposture• <strong>to</strong>o large for <strong>the</strong> task, requir<strong>in</strong>g staff <strong>to</strong> overreach <strong>and</strong> carry out work fur<strong>the</strong>r from <strong>the</strong>irbodies.These risks <strong>in</strong>crease if <strong>the</strong> worker:• doesn’t have enough breaks or downtime <strong>in</strong> which <strong>the</strong>y can recover• has <strong>to</strong> carry out <strong>the</strong> task over a long time• has <strong>to</strong> st<strong>and</strong> <strong>in</strong> a fixed position or use repetitive movements• has <strong>to</strong> use force.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksFixed height worksurfacesTo work out <strong>the</strong> height for a fixed worksurface you need <strong>to</strong> take <strong>in</strong><strong>to</strong> account:• <strong>the</strong> st<strong>and</strong><strong>in</strong>g elbow heights for both males (1040–1340mm) <strong>and</strong> females (935–1135mm). Most tasks are carried out somewhere between elbow <strong>and</strong> knuckle height2:8


• <strong>the</strong> space needed below elbow height <strong>to</strong> carry out <strong>the</strong> tasks. Allow more space if staffhave <strong>to</strong> use force• <strong>the</strong> height of footwear soles <strong>and</strong> whe<strong>the</strong>r staff need <strong>to</strong> st<strong>and</strong> astride for better balanceif <strong>the</strong>y have <strong>to</strong> use force• <strong>the</strong> height of <strong>the</strong> object be<strong>in</strong>g h<strong>and</strong>led, <strong>the</strong> height at which it will be gripped <strong>and</strong> <strong>the</strong>effect of any h<strong>and</strong> <strong>to</strong>ols be<strong>in</strong>g used, eg, hook, pickaroon, strapper• <strong>the</strong> heights of any o<strong>the</strong>r surfaces <strong>the</strong> worker will be work<strong>in</strong>g with, eg, transferr<strong>in</strong>gitems from a table <strong>to</strong> packet.Off <strong>to</strong> a good startNo fixed height worksurface will suit everyone. Fix <strong>the</strong> height at a level that suits moststaff. A good start<strong>in</strong>g po<strong>in</strong>t <strong>to</strong> trial for a fixed height worksurface for pull<strong>in</strong>g timber ona long table is 920mm (if you have both male <strong>and</strong> female workers <strong>and</strong> timber height isno greater than 100mm).Adjustable height worksurfacesUse adjustable height worksurfaces if fixed ones don’t suit <strong>the</strong> worker, <strong>and</strong> especially if <strong>the</strong>task requires accuracy, eg, <strong>to</strong>ol<strong>in</strong>g tasks.You can also use st<strong>and</strong><strong>in</strong>g platforms so staff can adjust <strong>the</strong> height <strong>to</strong> suit <strong>the</strong>m. Make sure<strong>the</strong> platforms are large enough for all steps of <strong>the</strong> task. You also need <strong>to</strong> make sure <strong>the</strong>platform edges are clearly marked <strong>and</strong> designed so <strong>the</strong>y can be easily moved <strong>and</strong> s<strong>to</strong>redwhen not <strong>in</strong> use.Size countsMake sure you match <strong>the</strong> width <strong>and</strong> depth of worksurfaces (not just <strong>the</strong> height) <strong>to</strong> <strong>the</strong>needs of <strong>the</strong> task be<strong>in</strong>g carried out.Manag<strong>in</strong>g fatigueIf staff are required <strong>to</strong> st<strong>and</strong> while carry<strong>in</strong>g out tasks you need <strong>to</strong> control <strong>the</strong> amount of time<strong>the</strong>y’re do<strong>in</strong>g that task. Staff need regular breaks of a reasonable length so that <strong>the</strong>ir bodiescan recover from <strong>the</strong> activity. How often <strong>and</strong> how long <strong>the</strong>se breaks are will depend on <strong>the</strong>particular task.Try rotat<strong>in</strong>g staff (mov<strong>in</strong>g <strong>the</strong>m on <strong>to</strong> different tasks) <strong>to</strong> control <strong>the</strong> amount of time anyone worker spends at a given task. You can rotate workers <strong>in</strong> different work areas or moveworkers <strong>in</strong> <strong>the</strong> same work area on <strong>to</strong> different tasks.If you rotate staff, it’s important that:• <strong>the</strong> number of staff rema<strong>in</strong>s <strong>the</strong> same• you still have enough staff <strong>to</strong> cover people who’re away (sick leave, appo<strong>in</strong>tments)• everyone is tra<strong>in</strong>ed <strong>in</strong> all <strong>the</strong> tasks you’re rotat<strong>in</strong>g• <strong>the</strong> staff can physically carry out <strong>the</strong> tasks for <strong>the</strong> length of <strong>the</strong> rotation, ie, don’t make<strong>the</strong> task time <strong>to</strong>o long.2:9


Table tasks – workspace designSort<strong>in</strong>g tables <strong>and</strong> packets can cause manual h<strong>and</strong>l<strong>in</strong>g hazards. Your staff may be at greaterrisk of h<strong>and</strong>l<strong>in</strong>g hazards where:• <strong>the</strong> height at <strong>the</strong> start or end of a task is outside <strong>the</strong>ir comfortable reach. This is madeworse if <strong>the</strong>y’re hav<strong>in</strong>g <strong>to</strong> work aga<strong>in</strong>st gravity, eg, pull<strong>in</strong>g <strong>and</strong> lift<strong>in</strong>g boards off <strong>the</strong>table <strong>and</strong> up on<strong>to</strong> packets• <strong>the</strong>y’re hav<strong>in</strong>g <strong>to</strong> travel large distances between <strong>the</strong> table <strong>and</strong> packets. This means<strong>the</strong>y’re carry<strong>in</strong>g more weight <strong>and</strong> it also <strong>in</strong>creases <strong>the</strong> time needed for <strong>the</strong> task• <strong>the</strong>y’re hav<strong>in</strong>g <strong>to</strong> restrict <strong>the</strong>ir movements or be <strong>in</strong> uncomfortable positions becauseof a small work area or obstructions, eg, packets are <strong>to</strong>o close <strong>to</strong> <strong>the</strong> table or <strong>to</strong>o close<strong>to</strong>ge<strong>the</strong>r, or obstructions such as poles <strong>and</strong> mach<strong>in</strong>ery hous<strong>in</strong>g are <strong>in</strong> <strong>the</strong> way• <strong>the</strong> workspace has unnecessarily high levels of friction that require greater force <strong>to</strong>move <strong>the</strong> boards, eg, pull<strong>in</strong>g wet boards off a wooden deck• <strong>the</strong>re’s not enough board overhang, so that gripp<strong>in</strong>g <strong>and</strong> pull<strong>in</strong>g boards require <strong>the</strong>m<strong>to</strong> reach forward <strong>and</strong> possibly use double movements <strong>to</strong> get <strong>the</strong> boards on<strong>to</strong> <strong>the</strong>packets. This <strong>in</strong>creases <strong>the</strong> time needed for <strong>the</strong> task• <strong>the</strong>y’re at greater risk of trips or falls while mov<strong>in</strong>g <strong>the</strong> boards because of uneven floorsurfaces or obstacles, eg, sawdust, broken boards, strapp<strong>in</strong>g, fillets.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTo reduce <strong>the</strong> risk of table task hazards you need <strong>to</strong> make sure:• staff are able <strong>to</strong> h<strong>and</strong>le boards at a comfortable height <strong>and</strong> distance from <strong>the</strong>ir bodies• <strong>the</strong> distance <strong>and</strong> l<strong>in</strong>es between tables <strong>and</strong> packets are not <strong>to</strong>o far• staff are able <strong>to</strong> use gravity ra<strong>the</strong>r than fight it• <strong>the</strong>re’s as little friction as possible between <strong>the</strong> board <strong>and</strong> <strong>the</strong> table surface.These fac<strong>to</strong>rs affect each o<strong>the</strong>r. If you change one, you’ll need <strong>to</strong> th<strong>in</strong>k about how it affects<strong>the</strong> o<strong>the</strong>rs.Table heightTrial <strong>the</strong> table height at approximately 920mm (see ‘Fixed height worksurfaces’ on page 2:8).Make sure <strong>the</strong> f<strong>in</strong>ished packet height is no higher than <strong>the</strong> f<strong>in</strong>al layer of boards above <strong>the</strong>height of <strong>the</strong> table. Staff can <strong>the</strong>n use gravity <strong>to</strong> help move <strong>the</strong> boards from <strong>the</strong> table on<strong>to</strong><strong>the</strong> packet.2:10


Use packet risers <strong>to</strong> help keep <strong>the</strong> packet height slightly below <strong>the</strong> table. Staff won’t have <strong>to</strong>bend forward so much <strong>to</strong> place boards.Make a differenceYou can make a big difference <strong>in</strong> your workplace if you use packet risers even just on<strong>the</strong> jobs that are <strong>the</strong> most physically dem<strong>and</strong><strong>in</strong>g, eg, common grades or dimensions,very heavy timber.Table edgesTry <strong>to</strong> ensure your tables allow boards <strong>to</strong> overhang <strong>the</strong> table edge by an even amount – up<strong>to</strong> 1m. This will help your staff position <strong>the</strong>mselves closer <strong>to</strong> <strong>the</strong> load, s<strong>to</strong>p double h<strong>and</strong>l<strong>in</strong>g,make <strong>the</strong> load weight <strong>to</strong> be pulled less, <strong>and</strong> require less force <strong>to</strong> tip <strong>the</strong> board down (<strong>to</strong> ga<strong>in</strong>board speed).Distances between tables <strong>and</strong> packetsTry <strong>to</strong> position tables <strong>and</strong> packets no more than between 1100 <strong>and</strong> 1400mm apart. Staff willbe able <strong>to</strong> move boards without big sideways movements, twist<strong>in</strong>g or stepp<strong>in</strong>g. It will alsocut down <strong>the</strong> chances of hitt<strong>in</strong>g <strong>the</strong> board ends or packet. You’ll need <strong>to</strong> take <strong>in</strong><strong>to</strong> account:• how far <strong>the</strong> boards need <strong>to</strong> be moved up or down <strong>the</strong> table <strong>to</strong> <strong>the</strong> packet• how long <strong>the</strong> boards are – longer lengths need more room, shorter lengths less room• <strong>the</strong> amount of traffic <strong>in</strong> <strong>the</strong> workspace – <strong>the</strong> space needed for tasks o<strong>the</strong>r than pull<strong>in</strong>gboards• how many packets need <strong>to</strong> be next <strong>to</strong> <strong>the</strong> table.Reduc<strong>in</strong>g frictionTo reduce friction between boards <strong>and</strong> <strong>the</strong> table surface:• reduce <strong>the</strong> surface areas <strong>in</strong> contact• <strong>in</strong>stall a tilt<strong>in</strong>g table• use low-friction edges <strong>and</strong> table surfaces• mount a curved pipe on <strong>the</strong> table or <strong>the</strong> table edge• use roller cha<strong>in</strong>s• keep up good ma<strong>in</strong>tenance.Floor<strong>in</strong>gMake sure <strong>the</strong> floor <strong>in</strong> <strong>the</strong> workspace:• is level• is free from obstructions• has an even grip surface – this will s<strong>to</strong>p staff slipp<strong>in</strong>g <strong>and</strong> is especially needed if yourtable is outside.H<strong>and</strong>l<strong>in</strong>g heavy timberMany hazards caused by h<strong>and</strong>l<strong>in</strong>g heavy materials are easy <strong>to</strong> spot. But <strong>the</strong>re are o<strong>the</strong>rmanual h<strong>and</strong>l<strong>in</strong>g hazards of work<strong>in</strong>g with heavy timber that are caused by:• <strong>the</strong> force that staff need <strong>to</strong> use <strong>to</strong> move heavy timber off <strong>the</strong> table. Hav<strong>in</strong>g <strong>to</strong> use suchforce for long periods can overload muscles <strong>and</strong> jo<strong>in</strong>ts <strong>and</strong> result <strong>in</strong> <strong>in</strong>jury2:11


• staff hav<strong>in</strong>g <strong>to</strong> h<strong>and</strong>le a lot of weight at some distance from <strong>the</strong>ir bodies. This cancause stra<strong>in</strong> <strong>in</strong> <strong>the</strong> neck, back, shoulders <strong>and</strong> arms• <strong>the</strong> size or weight of heavy boards, which makes it hard <strong>to</strong> place h<strong>and</strong>s under <strong>the</strong> load<strong>and</strong> get a good grip. This can be made worse by <strong>the</strong> need <strong>to</strong> wear gloves <strong>to</strong> protectaga<strong>in</strong>st chemicals <strong>and</strong> spl<strong>in</strong>ters• <strong>the</strong> force a worker needs <strong>to</strong> use <strong>to</strong> slow, s<strong>to</strong>p or change <strong>the</strong> direction of heavy boardsbe<strong>in</strong>g pulled off sort<strong>in</strong>g tables• a mismatch between mach<strong>in</strong>ery work pace, such as table speed, <strong>and</strong> <strong>the</strong> worker’sneed <strong>to</strong> recover before start<strong>in</strong>g <strong>the</strong> task aga<strong>in</strong>. This makes it difficult for staff <strong>to</strong> keepup <strong>the</strong> pace over <strong>the</strong> shift <strong>and</strong> can lead <strong>to</strong> tissue damage <strong>and</strong> <strong>in</strong>jury• h<strong>and</strong>l<strong>in</strong>g heavy material for <strong>to</strong>o long• h<strong>and</strong>l<strong>in</strong>g broken timber.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksAdjust<strong>in</strong>g <strong>the</strong> workplaceMake sure <strong>the</strong> layout of your workplace is suitable for h<strong>and</strong>l<strong>in</strong>g heavy timber.Th<strong>in</strong>k about us<strong>in</strong>g mach<strong>in</strong>ery <strong>to</strong> help manage <strong>the</strong> weight of timber, eg, trolleys, gantries,counterbalances.Better board h<strong>and</strong>l<strong>in</strong>gReduce <strong>the</strong> friction between <strong>the</strong> boards <strong>and</strong> <strong>the</strong> surfaces with which <strong>the</strong>y come <strong>in</strong><strong>to</strong> contact.This lessens <strong>the</strong> force workers have <strong>to</strong> use <strong>to</strong> get <strong>the</strong> board mov<strong>in</strong>g (see ‘Reduc<strong>in</strong>g friction’above).Consider mak<strong>in</strong>g <strong>the</strong> h<strong>and</strong>l<strong>in</strong>g of heavy boards (long length 100 x 100mm or larger) a twopersontask.Make sure workers have <strong>the</strong> best opportunity <strong>to</strong> get an ideal grip on heavy loads. They need<strong>to</strong> be able <strong>to</strong>:• get close <strong>to</strong> <strong>the</strong> load• get <strong>the</strong>ir h<strong>and</strong>s under <strong>the</strong> load (or place <strong>the</strong>m <strong>in</strong> <strong>the</strong> best position for <strong>the</strong> load)• use well fitt<strong>in</strong>g gloves that grip <strong>the</strong> load well without slipp<strong>in</strong>g.Work pace <strong>and</strong> flowReduce <strong>the</strong> work pace when larger, heavier boards are be<strong>in</strong>g h<strong>and</strong>led. Base <strong>the</strong> task cycletime on <strong>the</strong> time it takes <strong>to</strong> carry out <strong>the</strong> controlled h<strong>and</strong>l<strong>in</strong>g task along with enough recoverytime.If you can, vary <strong>the</strong> flow of work so that workers h<strong>and</strong>l<strong>in</strong>g heavy boards have spells ofh<strong>and</strong>l<strong>in</strong>g lighter boards dur<strong>in</strong>g <strong>the</strong>ir shift.Th<strong>in</strong>k about rotat<strong>in</strong>g staff between work areas or tasks (see ‘Manag<strong>in</strong>g fatigue’ on page 2:9).H<strong>and</strong>l<strong>in</strong>g small-sized timber2:12Not as easy <strong>to</strong> spot as when h<strong>and</strong>l<strong>in</strong>g heavy timber, hazards can also be caused by h<strong>and</strong>l<strong>in</strong>gsmall-sized timber. Because <strong>the</strong>se hazards are harder <strong>to</strong> uncover you need <strong>to</strong> give someattention <strong>to</strong> small-sized timber h<strong>and</strong>l<strong>in</strong>g <strong>in</strong> your workplace.


Your workers may experience small timber h<strong>and</strong>l<strong>in</strong>g hazards where:• <strong>the</strong> work pace is very fast. The load is lighter <strong>and</strong> a greater number of items is required<strong>to</strong> match <strong>the</strong> volume of larger timber. The faster pace may mean workers are notgett<strong>in</strong>g enough recovery time as <strong>the</strong> task is completed• <strong>the</strong> task doesn’t change <strong>and</strong> uses <strong>the</strong> same movements over <strong>and</strong> over. Us<strong>in</strong>g muscles<strong>the</strong> same way for long periods wears <strong>the</strong>m out more quickly than tasks that use avariety of movements• <strong>the</strong> time <strong>to</strong> do <strong>the</strong> task <strong>in</strong>creases. Small-sized timber can be more difficult <strong>to</strong> placeaccurately – it has more flex, can more easily get blown around by w<strong>in</strong>d, <strong>and</strong> is moreeasily moved out of position. Allow for this <strong>in</strong> <strong>the</strong> set task time. Especially make surestaff still have time <strong>to</strong> recover at <strong>the</strong> end of <strong>the</strong> task• <strong>the</strong> loads are made more unstable because more boards can be moved at a time.Give it a restWhen used at a fast pace, even with little force, muscle tissue can suffer <strong>in</strong>jury as ituses up energy faster than it can be supplied. A short time-out between <strong>the</strong> end ofa task <strong>and</strong> start<strong>in</strong>g aga<strong>in</strong> allows blood <strong>to</strong> get <strong>to</strong> <strong>the</strong> muscles be<strong>in</strong>g used. This helpsrecovery.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTask timeWhen h<strong>and</strong>l<strong>in</strong>g small-sized timber, ei<strong>the</strong>r allow more time for your workers <strong>to</strong> complete<strong>the</strong> task or use more workers. Base <strong>the</strong> time for <strong>the</strong> task on <strong>the</strong> time needed for <strong>the</strong> timberh<strong>and</strong>l<strong>in</strong>g, additional tasks (eg, restack<strong>in</strong>g, clear<strong>in</strong>g broken boards) <strong>and</strong> enough time for <strong>the</strong>worker <strong>to</strong> recover.Work pace <strong>and</strong> flowIf you can, vary <strong>the</strong> flow of work so that staff h<strong>and</strong>l<strong>in</strong>g light boards, a task that uses <strong>the</strong> samemovements over <strong>and</strong> over, have spells of less repetitive tasks <strong>in</strong> h<strong>and</strong>l<strong>in</strong>g heavier boardsdur<strong>in</strong>g <strong>the</strong>ir shift.Th<strong>in</strong>k about rotat<strong>in</strong>g workers between work areas or tasks (see ‘Manag<strong>in</strong>g fatigue’ on page2:9).2:13


H<strong>and</strong>l<strong>in</strong>g of <strong>to</strong>ol<strong>in</strong>g for woodwork<strong>in</strong>g mach<strong>in</strong>esYour staff may face hazards when h<strong>and</strong>l<strong>in</strong>g <strong>to</strong>ol<strong>in</strong>g or carry<strong>in</strong>g out ma<strong>in</strong>tenance forwoodwork<strong>in</strong>g. These hazards happen where <strong>the</strong> load is:• extremely sharp, eg, blade, cutt<strong>in</strong>g edge. This makes it difficult for staff <strong>to</strong> grip it safelyor <strong>the</strong>y may need <strong>to</strong> use gloves <strong>and</strong> o<strong>the</strong>r protective gear that make it harder <strong>to</strong> grip ormove• heavy or where staff need <strong>to</strong> use force <strong>to</strong> move it, eg, sawdust <strong>and</strong> delodg<strong>in</strong>g bladesor mach<strong>in</strong>ery that have <strong>to</strong> be removed more firmly• difficult <strong>to</strong> grip – it could be smooth or slippery or <strong>the</strong>re may be no easy h<strong>and</strong> holds• difficult <strong>to</strong> move <strong>in</strong><strong>to</strong> or out of position – where staff have <strong>to</strong>:– be <strong>in</strong> a restricted or unbalanced position– lift away from <strong>the</strong>ir bodies– carry out movements at awkward angles• <strong>in</strong> <strong>the</strong> way of <strong>the</strong> worker’s view of where it has <strong>to</strong> go, so <strong>the</strong> worker gets <strong>in</strong><strong>to</strong> anawkward or restricted position <strong>to</strong> get a better view• bulky or awkward <strong>to</strong> carry, eg, a b<strong>and</strong>saw blade.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksSupportProvide support such as trolleys or gantries so that staff don’t have <strong>to</strong> carry <strong>the</strong> itemsdirectly. Whatever support you use, it needs <strong>to</strong> be able <strong>to</strong> get as close as possible <strong>to</strong> <strong>the</strong> area<strong>the</strong> item is needed. Keep awkward reaches <strong>to</strong> a m<strong>in</strong>imum.Keep<strong>in</strong>g distances downIf items have <strong>to</strong> be moved <strong>in</strong><strong>to</strong> or out of position, see if you can change <strong>the</strong> work areas sothat:• lift<strong>in</strong>g <strong>and</strong> carry<strong>in</strong>g distances are as short as possible• staff can get <strong>the</strong>ir bodies close <strong>to</strong>, <strong>and</strong> <strong>the</strong>ir feet underneath, <strong>the</strong> load - <strong>the</strong>y <strong>the</strong>ndon’t have <strong>to</strong> reach away from <strong>the</strong> load• workshops are close <strong>to</strong> <strong>the</strong> mach<strong>in</strong>es – less carry<strong>in</strong>g <strong>and</strong> mov<strong>in</strong>g are required <strong>and</strong><strong>the</strong>re is more time for <strong>the</strong> task itself.Number of staffTh<strong>in</strong>k about us<strong>in</strong>g two workers for a task or rotate staff <strong>to</strong> make sure everyone has enoughtime <strong>to</strong> recover from physically dem<strong>and</strong><strong>in</strong>g tasks.2:14


Proper protectionMake sure staff use suitable gloves when h<strong>and</strong>l<strong>in</strong>g <strong>to</strong>ol<strong>in</strong>g. Gloves must be strong enough <strong>to</strong>s<strong>to</strong>p workers gett<strong>in</strong>g cuts but not so thick that <strong>the</strong>y make h<strong>and</strong>l<strong>in</strong>g or gripp<strong>in</strong>g much harder.Look for gloves with a surface that provides good grip for <strong>the</strong> item. Make sure you have achoice of sizes so all your workers are able <strong>to</strong> use a pair.H<strong>and</strong>l<strong>in</strong>g panel productsPanel products, such as plyboard <strong>and</strong> MDF, create manual h<strong>and</strong>l<strong>in</strong>g hazards, very oftenbecause of <strong>the</strong>ir size. Large products:• can be difficult <strong>to</strong> move <strong>in</strong><strong>to</strong> a position that’s safe <strong>to</strong> carry• may require a wide armspan <strong>to</strong> get a good, stable grip• can be unstable or become unbalanced, particularly if it’s w<strong>in</strong>dy• can be difficult <strong>to</strong> move when ly<strong>in</strong>g flat because <strong>the</strong> large surface area <strong>in</strong>creasesfriction• may be very heavy, with <strong>the</strong> weight spread over a large area.You may need <strong>to</strong> weigh up o<strong>the</strong>r panel product h<strong>and</strong>l<strong>in</strong>g hazards such as high temperaturesor <strong>the</strong> risk of spl<strong>in</strong>ters. You also need <strong>to</strong> th<strong>in</strong>k about whe<strong>the</strong>r <strong>the</strong>y create o<strong>the</strong>r hazards suchas staff slipp<strong>in</strong>g or tripp<strong>in</strong>g while carry<strong>in</strong>g <strong>the</strong>se large panels because <strong>the</strong>y can’t see where<strong>the</strong>y’re go<strong>in</strong>g.You can create an <strong>in</strong>jury risk if you don’t allow enough time <strong>to</strong> complete <strong>the</strong> task <strong>and</strong> enoughtime for <strong>the</strong> worker <strong>to</strong> recover afterwards. New staff, workers new <strong>to</strong> <strong>the</strong> task or workerscom<strong>in</strong>g back after an <strong>in</strong>jury may need more time at first <strong>to</strong> complete <strong>the</strong> task. Don’t forget <strong>to</strong>allow more time for <strong>the</strong> task if you add an extra step <strong>to</strong> <strong>the</strong> job, eg, an extra <strong>in</strong>spection step.Sh<strong>in</strong>e a lightCheck <strong>the</strong> light<strong>in</strong>g <strong>and</strong> temperature <strong>in</strong> <strong>the</strong> work area. Poor light<strong>in</strong>g <strong>and</strong> very hot, coldor humid conditions can make it difficult for workers <strong>to</strong> complete job tasks <strong>in</strong> <strong>the</strong> timeyou’ve allowed.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksA variety of equipment can help lessen <strong>the</strong> likelihood of hazards when h<strong>and</strong>l<strong>in</strong>g panelproducts:• lift<strong>in</strong>g hooks have an adjustable rod of 600–800mm long with a hook at one end<strong>and</strong> a h<strong>and</strong>le at <strong>the</strong> o<strong>the</strong>r. Us<strong>in</strong>g hooks, one person can move smaller panels withoutbend<strong>in</strong>g or overreach<strong>in</strong>g <strong>and</strong> <strong>the</strong> panel can be more stably gripped <strong>and</strong> h<strong>and</strong>led• panel trolleys are height adjustable, have a tilt<strong>in</strong>g bed <strong>and</strong> lock<strong>in</strong>g wheels. Oneperson can use <strong>the</strong> trolley <strong>to</strong> move panels with less manual h<strong>and</strong>l<strong>in</strong>g• low-friction surfaces. Us<strong>in</strong>g <strong>the</strong>se wherever boards are h<strong>and</strong>led manually lessens <strong>the</strong>amount of force staff have <strong>to</strong> use <strong>to</strong> move <strong>the</strong>m• vacuum-h<strong>and</strong>l<strong>in</strong>g systems. See whe<strong>the</strong>r such equipment is suitable for yourworkplace for h<strong>and</strong>l<strong>in</strong>g panel products. This equipment can reduce h<strong>and</strong>l<strong>in</strong>g time, butyou’ll need <strong>to</strong> trial it <strong>to</strong> check it’s suitable for <strong>the</strong> task2:15


Staff tra<strong>in</strong><strong>in</strong>gAs with all equipment you need <strong>to</strong> have tra<strong>in</strong><strong>in</strong>g <strong>and</strong> preventive ma<strong>in</strong>tenanceprogrammes <strong>in</strong> place so that workers know how <strong>to</strong> properly use <strong>and</strong> care for <strong>the</strong>equipment.Make sure <strong>the</strong> tra<strong>in</strong><strong>in</strong>g covers not only what’s <strong>in</strong>volved <strong>in</strong> <strong>the</strong> task but also what <strong>the</strong>hazards are <strong>and</strong> how <strong>to</strong> manage <strong>the</strong>m with safe techniques.2.5 Fur<strong>the</strong>r read<strong>in</strong>g• Code of Practice for Manual H<strong>and</strong>l<strong>in</strong>g (2001). ACC <strong>and</strong> OSH, Well<strong>in</strong>g<strong>to</strong>n (available fromACC or OSH).• Fillet<strong>in</strong>g: good practice pr<strong>in</strong>ciples <strong>to</strong> help prevent musculoskeletal disorders (2003).COFHE Report, 4 (3), Forest Research, Ro<strong>to</strong>rua.• Musculoskeletal Disorders <strong>in</strong> Sawmill<strong>in</strong>g: ergonomics work system assessments <strong>and</strong>suggested <strong>in</strong>terventions (2003). COFHE Report, 4 (6), Forest Research, Ro<strong>to</strong>rua.2:16


Section ThreeLockout3:1


3:2


3.1 Lock<strong>in</strong>g out mach<strong>in</strong>eryWhat is lockout?Lockout is where you use a lock or you isolate an energy source <strong>to</strong> s<strong>to</strong>p your staff be<strong>in</strong>g able<strong>to</strong> operate mach<strong>in</strong>ery or equipment.Every year, workers <strong>in</strong> New Zeal<strong>and</strong> are killed or seriously <strong>in</strong>jured because mach<strong>in</strong>ery orequipment is not properly locked out. For example, accidents where workers are caught <strong>in</strong>mach<strong>in</strong>ery can result <strong>in</strong> severed f<strong>in</strong>gers, crushed limbs or death. These accidents can beprevented if mach<strong>in</strong>ery is locked out properly.The aim of lockout is <strong>to</strong> make sure <strong>the</strong>re is ‘zero energy’. This is where all sources of energy,<strong>in</strong>clud<strong>in</strong>g electrical, pneumatic, hydraulic, mechanical <strong>and</strong> s<strong>to</strong>red energy, are isolated sothat mov<strong>in</strong>g parts on equipment or mach<strong>in</strong>ery can’t be activated.What <strong>the</strong> law saysEmployers, supervisors <strong>and</strong> employees each have responsibilities for lockout under <strong>the</strong><strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Act. Lockout is important for opera<strong>to</strong>rs, ma<strong>in</strong>tenance staff,contrac<strong>to</strong>rs, cleaners <strong>and</strong> any o<strong>the</strong>r person required <strong>to</strong> work near mov<strong>in</strong>g parts of mach<strong>in</strong>ery.Case studyA worker noticed that <strong>the</strong> cha<strong>in</strong>s had dropped off <strong>the</strong> double idler sprocket at <strong>the</strong>bot<strong>to</strong>m of <strong>the</strong> sawmill unscrambler. He turned <strong>the</strong> power off but did not lock out <strong>the</strong>power source. He <strong>the</strong>n started <strong>to</strong> put <strong>the</strong> cha<strong>in</strong>s back on <strong>the</strong> sprocket.Meanwhile, ano<strong>the</strong>r worker noticed that <strong>the</strong> unscrambler was not runn<strong>in</strong>g <strong>and</strong> turned<strong>the</strong> power back on. The mach<strong>in</strong>e started up <strong>and</strong> <strong>the</strong> worker suffered serious <strong>in</strong>juries.A simple, effective lockout procedure would have prevented this <strong>in</strong>jury.3:3


3.2 Identify<strong>in</strong>g hazardsIdentify<strong>in</strong>g hazards <strong>in</strong> your workplace is <strong>the</strong> first step <strong>in</strong> mak<strong>in</strong>g sure your staff are work<strong>in</strong>g<strong>in</strong> a safe environment. You need <strong>to</strong> work through steps <strong>to</strong> identify all <strong>the</strong> hazardous areas <strong>in</strong>your workplace where lock<strong>in</strong>g out mach<strong>in</strong>ery will help prevent possible harm or <strong>in</strong>jury.Do you need a lockout?Follow <strong>the</strong>se steps <strong>in</strong> mak<strong>in</strong>g a decision about whe<strong>the</strong>r or not a lockout is required:1. Decide if <strong>the</strong>re is a risk of <strong>in</strong>jury <strong>to</strong> your staff from <strong>the</strong> movement of <strong>the</strong> mach<strong>in</strong>eryor equipment or exposure <strong>to</strong> an energy source while <strong>the</strong> activity is carried out.Th<strong>in</strong>k of all sources of hazardous energy, such as pneumatic/hydraulic systems <strong>and</strong>suspended equipment that could roll or fall.2. If <strong>the</strong>re is no risk of <strong>in</strong>jury, lockout is not required, eg, an opera<strong>to</strong>r would normally be<strong>in</strong> view of <strong>the</strong>ir control panel at all times.3. If <strong>the</strong>re is a risk of <strong>in</strong>jury, decide if any safeguards you’re us<strong>in</strong>g <strong>to</strong> protect staff from<strong>the</strong> risk are work<strong>in</strong>g well. If <strong>the</strong>y are, lockout is not required.4. Make sure that you follow safe work procedures dur<strong>in</strong>g <strong>the</strong> activity.You need lockoutIf <strong>the</strong>re is a risk of <strong>in</strong>jury or harm <strong>and</strong> you don’t have safeguards that are work<strong>in</strong>g well<strong>to</strong> protect staff, you need <strong>to</strong> use a lockout.3.3 Assess<strong>in</strong>g lockout hazardsIn assess<strong>in</strong>g possible risks you’re work<strong>in</strong>g out how likely it is that hazardous events willhappen. It is an important step <strong>in</strong> focus<strong>in</strong>g your bus<strong>in</strong>ess’s efforts <strong>to</strong> control those hazards<strong>and</strong> fac<strong>to</strong>rs that are most likely <strong>to</strong> cause <strong>in</strong>jury or harm.See <strong>the</strong> ACC website (www.acc.co.<strong>nz</strong>) for ideas on identify<strong>in</strong>g <strong>and</strong> assess<strong>in</strong>g risks. Lookunder ‘Injury prevention’, <strong>the</strong>n ‘Safe at work’.3:4


3.4 Good practice for lockoutOnce you’ve decided that lockout is required, follow <strong>the</strong>se next five steps <strong>to</strong> lock out allsources of energy.Five steps <strong>to</strong> lockout1. Identify <strong>the</strong> mach<strong>in</strong>ery or equipment that needs <strong>to</strong> be locked out.2. Shut off <strong>the</strong> mach<strong>in</strong>ery or equipment. Make sure that all mov<strong>in</strong>g parts have come <strong>to</strong> acomplete s<strong>to</strong>p. You also need <strong>to</strong> make sure that you’ve not created a hazard for o<strong>the</strong>rstaff by shutt<strong>in</strong>g off <strong>the</strong> equipment.3. Identify <strong>and</strong> de-activate (turn off) <strong>the</strong> ma<strong>in</strong> energy-isolat<strong>in</strong>g device for each energysource. This may <strong>in</strong>clude:• disconnect<strong>in</strong>g <strong>the</strong> electrical power <strong>to</strong> <strong>the</strong> pump or compressor• clos<strong>in</strong>g <strong>the</strong> valve feed<strong>in</strong>g <strong>the</strong> cyl<strong>in</strong>der.4. Put a personal lock on<strong>to</strong> <strong>the</strong> energy-isolat<strong>in</strong>g device for each energy source so that nopart or attachment can be accidentally started or moved.5. Test <strong>the</strong> lockout <strong>to</strong> make sure it’s work<strong>in</strong>g. (First make sure that all staff are <strong>in</strong> <strong>the</strong> clear<strong>and</strong> that no hazard will be created if <strong>the</strong> lockout doesn’t work.)• Test <strong>the</strong> lockout <strong>to</strong> make sure you have got zero energy (eg, press <strong>the</strong> start but<strong>to</strong>n).• Test <strong>to</strong> make sure <strong>the</strong> pump or compressor won’t start <strong>and</strong> that <strong>the</strong> flow doesn’tbypass <strong>the</strong> valve.• Make sure <strong>the</strong>re is no residual (lef<strong>to</strong>ver) pressure <strong>in</strong> <strong>the</strong> l<strong>in</strong>es, reservoirs oraccumula<strong>to</strong>r feed<strong>in</strong>g <strong>the</strong> cyl<strong>in</strong>der. Get rid of any residual pressure.• Check that <strong>the</strong>re is zero energy <strong>in</strong> <strong>the</strong> system. You’ll need <strong>to</strong> make sure you’ve put<strong>in</strong> place mechanical measures while you’re at zero energy, such as mechanicallysupport<strong>in</strong>g any raised load.• Rule out <strong>the</strong> possibility of an accidental start-up – you must check light beams,pressure sensors <strong>and</strong> computer-controlled systems that may start up a mach<strong>in</strong>eau<strong>to</strong>matically.Key safety issues• Hold cards – are not best practice for lockout.• Emergency s<strong>to</strong>ps/electrical <strong>in</strong>terlocks – must not be used <strong>to</strong> rout<strong>in</strong>ely s<strong>to</strong>pmach<strong>in</strong>ery or as a sole method of lockout.• Overrun of mach<strong>in</strong>ery – workers must not be able <strong>to</strong> enter a lockout area until<strong>the</strong> mach<strong>in</strong>ery is s<strong>to</strong>pped <strong>and</strong>/or you’ve provided brak<strong>in</strong>g systems. As a ruleof thumb any mach<strong>in</strong>e that takes more than 10 seconds <strong>to</strong> s<strong>to</strong>p should have asafe entry system <strong>in</strong> place, eg, a time delay that matches <strong>the</strong> rundown time on<strong>in</strong>terlocked gates.• Switch gear – access <strong>to</strong> switch gear must be by authorised persons only. Thedoor <strong>to</strong> this equipment must be locked at all times.3:5


Work<strong>in</strong>g on energised equipmentSometimes mach<strong>in</strong>ery or equipment needs energy for a specific task – eg, when you’remak<strong>in</strong>g f<strong>in</strong>e adjustments or troubleshoot<strong>in</strong>g <strong>and</strong> you need <strong>to</strong> have part of <strong>the</strong> equipmentwork<strong>in</strong>g. In <strong>the</strong>se cases, you should supply energy only <strong>to</strong> <strong>the</strong> parts that are vital <strong>to</strong> <strong>the</strong>ma<strong>in</strong>tenance process.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksWork on energised equipment must only be carried out by workers who are:• qualified <strong>to</strong> do <strong>the</strong> work• authorised by <strong>the</strong> employer <strong>to</strong> do <strong>the</strong> work• provided with <strong>and</strong> follow written safe work procedures, eg, permit <strong>to</strong> work. This mayalso <strong>in</strong>clude extra supervision.Group lockout procedureIf a number of workers are work<strong>in</strong>g on mach<strong>in</strong>ery or equipment (particularly if a large numberof energy-isolat<strong>in</strong>g devices must be locked out) you can use group lockout. Group lockoutssave time as <strong>the</strong>y reduce <strong>the</strong> number of locks required.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksBefore us<strong>in</strong>g a group lockout, a knowledgeable person must plan what is <strong>to</strong> happen aheadof time <strong>and</strong> write up a group lockout procedure. You need <strong>to</strong> put this written procedure upwhere <strong>the</strong> system is <strong>in</strong> use <strong>and</strong> where staff can easily see it.Lockouts across shiftsYou may need <strong>to</strong> keep a lockout <strong>in</strong> place between shift changes.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksYou need <strong>to</strong> have procedures that cover this for shift or staff changes. Your procedures need<strong>to</strong> <strong>in</strong>clude <strong>the</strong> h<strong>and</strong>over of control of <strong>the</strong> lockout devices between outgo<strong>in</strong>g <strong>and</strong> <strong>in</strong>com<strong>in</strong>gstaff.If locks are not left on <strong>the</strong> control devices between shifts, <strong>the</strong> staff com<strong>in</strong>g on shift must reestablish<strong>the</strong> lockout, if needed.Releas<strong>in</strong>g mach<strong>in</strong>es from lockoutOnce <strong>the</strong> work that required <strong>the</strong> lockout has been completed, <strong>the</strong> mach<strong>in</strong>e can be releasedfrom lockout. This must be carried out carefully <strong>in</strong> a set process that everyone <strong>in</strong> yourworkplace knows <strong>and</strong> underst<strong>and</strong>s.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksBefore releas<strong>in</strong>g a mach<strong>in</strong>e <strong>to</strong> production operations, <strong>the</strong> staff who put <strong>in</strong> place <strong>the</strong> lockoutmust follow <strong>the</strong>se steps:3:6


1. Remove all non-essential items (eg, <strong>to</strong>ols, spare parts etc).2. See that all equipment parts are <strong>in</strong> <strong>the</strong> correct place for <strong>the</strong> equipment <strong>to</strong> operate,<strong>in</strong>clud<strong>in</strong>g guards <strong>and</strong> safety devices.3. Inspect for obstructions, <strong>in</strong>complete work, etc. Where necessary carry out a team<strong>in</strong>spection us<strong>in</strong>g tra<strong>in</strong>ed workers <strong>to</strong> check specifics, eg, hydraulics, pneumatics.4. Repair or replace safeguards or safety devices before remov<strong>in</strong>g lockouts.5. Remove each lockout device us<strong>in</strong>g <strong>the</strong> correct removal steps.6. See that everyone is physically clear of <strong>the</strong> equipment before energy is switched backon.7. Develop <strong>and</strong> follow a special lockout procedure where staff are not available <strong>to</strong> clear<strong>the</strong>ir personal locks because of sickness, absenteeism, etc.O<strong>the</strong>r hazardsEven if all lockout procedures are followed correctly it doesn’t necessarily mean that <strong>the</strong>reare no o<strong>the</strong>r hazards present. Be aware of such th<strong>in</strong>gs as tripp<strong>in</strong>g <strong>and</strong> fall hazards if staff arework<strong>in</strong>g at height or <strong>in</strong> awkward locations. You must provide safe work<strong>in</strong>g platforms <strong>in</strong> allareas staff are likely <strong>to</strong> go. (See Section One on safe access.)Case studyA worker turned off <strong>the</strong> log kickers <strong>and</strong> entered <strong>the</strong> mach<strong>in</strong>e <strong>to</strong> undertake work. Hehad <strong>to</strong> go <strong>in</strong> <strong>and</strong> out of <strong>the</strong> mach<strong>in</strong>e several times. The computer-operated systemwas programmed <strong>to</strong> au<strong>to</strong>matically activate <strong>the</strong> kickers every five logs, ie, every fifthtime <strong>the</strong> light beam was broken. After <strong>the</strong> fifth time <strong>the</strong> worker broke <strong>the</strong> beam, <strong>the</strong>mach<strong>in</strong>e kicked <strong>in</strong><strong>to</strong> gear. His <strong>in</strong>juries <strong>in</strong>cluded a broken arm <strong>and</strong> severe bruis<strong>in</strong>g.Correct lockout should have <strong>in</strong>cluded de-activat<strong>in</strong>g <strong>the</strong> light beam/computer control.3:7


3.5 Workplace responsibilitiesfor lockoutEmployer responsibilitiesThe employer is responsible for putt<strong>in</strong>g <strong>in</strong> place <strong>the</strong> lockout system <strong>to</strong> be used with<strong>in</strong><strong>the</strong> workplace. You must write up <strong>the</strong> procedures for lockout. Depend<strong>in</strong>g on <strong>the</strong> size <strong>and</strong>complexity of <strong>the</strong> operation, you may also need <strong>to</strong> write up o<strong>the</strong>r aspects of <strong>the</strong> lockoutsystem – eg, emergency lock removal <strong>and</strong> multiple po<strong>in</strong>t lockout. These procedures form par<strong>to</strong>f your health <strong>and</strong> safety programme.You must mark or tag each personal lock <strong>to</strong> identify <strong>the</strong> person who can use it. For example,<strong>the</strong> worker’s name could be engraved on <strong>the</strong> lock or you may use a log book that matches<strong>the</strong> serial numbers of locks <strong>to</strong> particular workers.Information <strong>and</strong> tra<strong>in</strong><strong>in</strong>gYou must have safe work procedures for ma<strong>in</strong>tenance, cleaners, contrac<strong>to</strong>rs <strong>and</strong> production.Anyone work<strong>in</strong>g <strong>in</strong> your workplace must underst<strong>and</strong> <strong>and</strong> use your lockout systems.Contrac<strong>to</strong>r co-ord<strong>in</strong>ationYou must make sure that all contrac<strong>to</strong>rs meet your lockout requirements before start<strong>in</strong>g ajob.Supervisor responsibilitiesThe supervisor must ensure that correct lockout procedures are <strong>in</strong> place <strong>and</strong> be<strong>in</strong>g followedat all times. Supervisors need <strong>to</strong> record <strong>the</strong>ir rout<strong>in</strong>e moni<strong>to</strong>r<strong>in</strong>g of opera<strong>to</strong>r lockoutprocedures.Employee responsibilitiesAll employees who work on mach<strong>in</strong>ery or equipment requir<strong>in</strong>g lockout are responsible for:• lock<strong>in</strong>g out <strong>the</strong> energy-isolat<strong>in</strong>g device• remov<strong>in</strong>g <strong>the</strong>ir personal locks on <strong>the</strong> completion of <strong>the</strong>ir work• keep<strong>in</strong>g control of <strong>the</strong> keys <strong>to</strong> personal locks throughout <strong>the</strong> work.3.6 Fur<strong>the</strong>r read<strong>in</strong>g3:8• <strong>Guide</strong>l<strong>in</strong>es For Guard<strong>in</strong>g Pr<strong>in</strong>ciples <strong>and</strong> General <strong>Safety</strong> for Mach<strong>in</strong>ery (1995). OSH.• Guidance Notes for Electrical Interlock<strong>in</strong>g for <strong>Safety</strong> <strong>in</strong> Industrial Processes (1994).OSH.• AS 4024.1 : 1996 : Safeguard<strong>in</strong>g of mach<strong>in</strong>ery.• European St<strong>and</strong>ard, EN 1037 : 1995 : Prevention of unexpected start-up – acomprehensive discussion of energy dissipation, isolation devices, lock<strong>in</strong>g devices<strong>and</strong> design strategies <strong>to</strong> prevent un<strong>in</strong>tentional start-up.


Section FourMach<strong>in</strong>e Guard<strong>in</strong>g4:1


4:2


4.1 Mak<strong>in</strong>g mach<strong>in</strong>e operationssafeWhat is mach<strong>in</strong>e guard<strong>in</strong>g?Every New Zeal<strong>and</strong> workplace us<strong>in</strong>g mach<strong>in</strong>ery must provide guards <strong>to</strong> protect workers frommov<strong>in</strong>g or dangerous parts on those mach<strong>in</strong>es. As you’ll discover from <strong>the</strong>se guidel<strong>in</strong>esguards need not be complicated, nor make your bus<strong>in</strong>ess less productive.These guidel<strong>in</strong>es are based on <strong>the</strong> Australian st<strong>and</strong>ard AS 4024.1 : 1996 : Safeguard<strong>in</strong>g ofmach<strong>in</strong>ery. The st<strong>and</strong>ard sets out why guard<strong>in</strong>g is important <strong>and</strong> how <strong>to</strong> identify hazards <strong>and</strong>risks throughout a mach<strong>in</strong>e’s life cycle. The st<strong>and</strong>ard also describes how <strong>to</strong> remove or lessen<strong>the</strong>se risks through both us<strong>in</strong>g guards <strong>and</strong> safe work practices.In this section we have provided general advice on good mach<strong>in</strong>e guard<strong>in</strong>g practices ra<strong>the</strong>rthan specific advice for different types of mach<strong>in</strong>ery. This <strong>in</strong>formation is purely a guide. Youcan use o<strong>the</strong>r methods <strong>to</strong> improve staff safety, provided <strong>the</strong> protection you offer is equal <strong>to</strong>or better than <strong>the</strong> requirements of AS 4024.4:3


The life cycle of mach<strong>in</strong>eryDesignConstructionTransportInstallationHazards can occur at all stagesof <strong>the</strong> mach<strong>in</strong>e life cycle. Somehazards will be <strong>the</strong> responsibility of<strong>the</strong> designers, manufacturers <strong>and</strong>suppliers. O<strong>the</strong>rs are yours.Commission<strong>in</strong>gOperation – start<strong>in</strong>g up, runn<strong>in</strong>g, shutt<strong>in</strong>g downSett<strong>in</strong>g or process changeoverClean<strong>in</strong>gTransportAdjustmentMa<strong>in</strong>tenanceDecommission<strong>in</strong>g <strong>and</strong> dismantl<strong>in</strong>gWhat <strong>the</strong> law saysThe law requires employers <strong>to</strong> keep a safe workplace. Follow<strong>in</strong>g <strong>the</strong> good mach<strong>in</strong>e guard<strong>in</strong>gpractices set out <strong>in</strong> this section will help you meet your legal obligations under <strong>the</strong>:• <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Act 1992– Section 6 Employers <strong>to</strong> ensure safety of employees– Sections 7-10 Employers shall ensure <strong>the</strong>re is an effective method for identify<strong>in</strong>g<strong>and</strong> controll<strong>in</strong>g hazards– Sections 12-13 Information for employees about hazards/tra<strong>in</strong><strong>in</strong>g <strong>and</strong> supervision– Section 18A Duties of persons sell<strong>in</strong>g or supply<strong>in</strong>g plant for use <strong>in</strong> a place of work<strong>in</strong>clud<strong>in</strong>g loan<strong>in</strong>g of plant– Section 19 Employees <strong>to</strong> ensure <strong>the</strong>ir own safety <strong>and</strong> that no action or <strong>in</strong>actioncauses harm4:4


• <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Regulations 1995– Section 11 Noise– Section 18 Protective devices for woodwork<strong>in</strong>g mach<strong>in</strong>ery– Section 56 Mach<strong>in</strong>ery (no employee under age of 15 shall work on any mach<strong>in</strong>ery…)– Section 66 Duties of designers of plant– Section 67 Duties of manufacturers <strong>and</strong> suppliers of plantShar<strong>in</strong>g responsibilityIt’s not only sawmills <strong>and</strong> wood process<strong>in</strong>g plants that have <strong>to</strong> make sure <strong>the</strong> mach<strong>in</strong>ery<strong>the</strong>y use is safe. Section 18A of <strong>the</strong> <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Act 1992 says anyonesell<strong>in</strong>g, supply<strong>in</strong>g, leas<strong>in</strong>g or loan<strong>in</strong>g plant <strong>to</strong> workplaces has a responsibility <strong>to</strong> make surethat plant is safe for use.Make <strong>the</strong> best startRight from <strong>the</strong> start, you should only buy mach<strong>in</strong>es that have all safety features, eg,brak<strong>in</strong>g systems <strong>and</strong> guards.Go back <strong>to</strong> your supplier if <strong>the</strong> mach<strong>in</strong>e <strong>the</strong>y’ve supplied does not meet reasonable guard<strong>in</strong>gst<strong>and</strong>ards (check <strong>the</strong> manufacturer’s specifications <strong>and</strong> <strong>in</strong>structions for guard<strong>in</strong>g details).You can tell <strong>the</strong> supplier that <strong>the</strong>y’re responsible for supply<strong>in</strong>g mach<strong>in</strong>es that are safe foruse. For you <strong>to</strong> have any grounds on which <strong>to</strong> go back <strong>to</strong> <strong>the</strong> supplier you must be us<strong>in</strong>g <strong>the</strong>mach<strong>in</strong>e for <strong>the</strong> purposes it was made.If you see a problem with a mach<strong>in</strong>e that’s widespread, contact <strong>the</strong> supplier. But also, letyour <strong>in</strong>dustry association <strong>and</strong> OSH know so <strong>the</strong>y can alert o<strong>the</strong>r employers.4:5


4.2 Identify<strong>in</strong>g hazardsIdentify<strong>in</strong>g hazards <strong>in</strong> your workplace is <strong>the</strong> first step <strong>in</strong> mak<strong>in</strong>g sure your staff are work<strong>in</strong>g <strong>in</strong>a safe environment. You need <strong>to</strong> work through a process <strong>to</strong> identify all <strong>the</strong> mach<strong>in</strong>e hazards<strong>in</strong> your workplace <strong>and</strong> decide how likely it is that any harm or <strong>in</strong>jury will happen.A process <strong>to</strong> deal with mach<strong>in</strong>e hazardsIdentify all mach<strong>in</strong>e hazardsAssess <strong>the</strong> risksElim<strong>in</strong>ate, isolate or m<strong>in</strong>imise hazards <strong>and</strong> risksUse safeguardsUse adm<strong>in</strong>istrative controlsReviewLook<strong>in</strong>g for risksTo identify hazards, walk through all your bus<strong>in</strong>ess’s work areas <strong>and</strong> identify mach<strong>in</strong>ery <strong>in</strong>which mov<strong>in</strong>g or exposed parts could cause <strong>in</strong>jury. Ask your staff <strong>to</strong> do <strong>the</strong> same but have<strong>the</strong>m read <strong>the</strong>se guidel<strong>in</strong>es first <strong>to</strong> get an idea of what <strong>to</strong> look for.You may also f<strong>in</strong>d it helpful <strong>to</strong> have someone else who works <strong>in</strong> <strong>the</strong> <strong>in</strong>dustry look throughyour work area.In go<strong>in</strong>g through this process you should th<strong>in</strong>k about both short- <strong>and</strong> long-term solutions.Guard<strong>in</strong>g a mach<strong>in</strong>e may be <strong>the</strong> best solution now, but long term, replac<strong>in</strong>g <strong>the</strong> mach<strong>in</strong>ewith an improved model with all <strong>the</strong> safety features may be <strong>the</strong> best option.When buy<strong>in</strong>g new mach<strong>in</strong>ery, check out <strong>the</strong> safety features <strong>and</strong> try <strong>to</strong> get <strong>the</strong> suppliers <strong>and</strong>manufacturers <strong>to</strong> fit guards <strong>to</strong> meet your particular needs.4:6


Common hazards <strong>to</strong> check forMach<strong>in</strong>e hazards are likely <strong>to</strong> fall <strong>in</strong><strong>to</strong> <strong>the</strong>se categories:Potential hazardTrapp<strong>in</strong>gCutt<strong>in</strong>gImpactShear<strong>in</strong>gEntanglementHeat/chemicalsRadiationNoiseElectricalLikely <strong>to</strong> happen…• <strong>in</strong>-runn<strong>in</strong>g nip on a conveyor• sharp parts of mach<strong>in</strong>e• be<strong>in</strong>g hit by <strong>the</strong> mach<strong>in</strong>e• guillot<strong>in</strong>e-type action• revolv<strong>in</strong>g shafts• glue mach<strong>in</strong>es• dryers• a multi-head plan<strong>in</strong>g mach<strong>in</strong>e• control equipment4:7


4.3 Assess<strong>in</strong>g mach<strong>in</strong>e hazardsTo assess possible risks you need <strong>to</strong> work out how likely it is that hazardous events willhappen. This allows you <strong>to</strong> put your efforts <strong>in</strong><strong>to</strong> deal<strong>in</strong>g with those hazards <strong>and</strong> fac<strong>to</strong>rs thatare most likely <strong>to</strong> cause <strong>in</strong>jury or harm.The Australian st<strong>and</strong>ard AS 4024 conta<strong>in</strong>s detailed <strong>in</strong>formation on <strong>the</strong> risk assessmentprocess. The steps below are a brief guide <strong>to</strong> risk assessment as set out <strong>in</strong> AS 4024. Theypo<strong>in</strong>t out some of <strong>the</strong> key elements of good practice that you can use <strong>in</strong> assess<strong>in</strong>g risk <strong>in</strong>your workplace.Risk assessment processTh<strong>in</strong>gs <strong>to</strong> th<strong>in</strong>k aboutTo decide how severe <strong>the</strong> <strong>in</strong>jury or harm a hazard may cause, you need <strong>to</strong> th<strong>in</strong>k about:• what you’re protect<strong>in</strong>g– people – opera<strong>to</strong>rs, ma<strong>in</strong>tenance personnel or anyone else– property– environment• how severe <strong>the</strong> <strong>in</strong>jury is likely <strong>to</strong> be– slight <strong>in</strong>jury or damage <strong>to</strong> health, eg, <strong>the</strong> person will recover– serious <strong>in</strong>jury or damage <strong>to</strong> health, eg, <strong>the</strong> person may not recover– extreme, where <strong>the</strong> person dies• how likely it is <strong>the</strong> hazardous event will happen– how often people come <strong>in</strong><strong>to</strong> contact with <strong>the</strong> mach<strong>in</strong>e <strong>and</strong> for how long (considerall your bus<strong>in</strong>ess activities) process<strong>in</strong>g, tra<strong>in</strong><strong>in</strong>g, ma<strong>in</strong>tenance, clean<strong>in</strong>g, shiftchangeover– <strong>the</strong> accident his<strong>to</strong>ry of <strong>the</strong> mach<strong>in</strong>e – don’t assume that a his<strong>to</strong>ry of ‘no accidents’au<strong>to</strong>matically means low risk• whe<strong>the</strong>r it’s possible <strong>to</strong> avoid or limit <strong>the</strong> risk, eg, through us<strong>in</strong>g only tra<strong>in</strong>ed staff on<strong>the</strong> mach<strong>in</strong>e• <strong>the</strong> likely speed at which <strong>the</strong> event is likely <strong>to</strong> happen – sudden, fast or slow• whe<strong>the</strong>r staff are able <strong>to</strong> avoid <strong>in</strong>jury or harm – by escap<strong>in</strong>g or react<strong>in</strong>g• how aware staff are of <strong>the</strong> risk.When carry<strong>in</strong>g out a risk assessment you need <strong>to</strong> th<strong>in</strong>k about more than just <strong>the</strong> technicalfac<strong>to</strong>rs. The tra<strong>in</strong><strong>in</strong>g, experience <strong>and</strong> ability of your staff can affect risk. Work practices, workconditions <strong>and</strong> environment also affect <strong>the</strong> likelihood of a hazard caus<strong>in</strong>g <strong>in</strong>jury or harm.4:8


4.4 Good practice for mach<strong>in</strong>eguard<strong>in</strong>gWhere you identify hazards <strong>and</strong> decide that <strong>the</strong>re is a significant risk of <strong>the</strong>ir happen<strong>in</strong>g youneed <strong>to</strong> work through a process <strong>to</strong> control <strong>the</strong>m.A process <strong>to</strong> deal with mach<strong>in</strong>e hazardsWhat do you need <strong>to</strong> do <strong>to</strong> elim<strong>in</strong>ate, isolate or m<strong>in</strong>imise <strong>the</strong> hazard?What safeguards can you apply?What work practices <strong>and</strong> processes need <strong>to</strong> change?What systems are needed <strong>to</strong> ensure safe work practices <strong>and</strong> mach<strong>in</strong>e hazards are ma<strong>in</strong>ta<strong>in</strong>ed?The best th<strong>in</strong>g you can do <strong>to</strong> improve workplace safety is <strong>to</strong> get rid of (elim<strong>in</strong>ate) hazards.If that’s not possible, you should th<strong>in</strong>k about how you can isolate <strong>the</strong>m, which may <strong>in</strong>cludeus<strong>in</strong>g safeguards. If that’s not possible, you need <strong>to</strong> th<strong>in</strong>k about how you can change workpractices <strong>and</strong> processes <strong>to</strong> lessen <strong>in</strong>jury <strong>and</strong> harm.Th<strong>in</strong>gs <strong>to</strong> consider…• Whe<strong>the</strong>r you can change your processes or product design so that you don’t need <strong>the</strong>mach<strong>in</strong>e.• Whe<strong>the</strong>r you can isolate <strong>the</strong> opera<strong>to</strong>r from <strong>the</strong> mach<strong>in</strong>e, eg, create a secure controlroom.• Whe<strong>the</strong>r you replace <strong>the</strong> mach<strong>in</strong>e with a model that has all <strong>the</strong> safety features.Us<strong>in</strong>g mach<strong>in</strong>e guardsWhere you’re unable <strong>to</strong> elim<strong>in</strong>ate or m<strong>in</strong>imise <strong>the</strong> hazard, you need <strong>to</strong> consider measuresthat will protect your workers from <strong>the</strong> hazard. Mach<strong>in</strong>e guards can provide protection.The type of safeguard available will depend on <strong>the</strong> type of operation you have, how youh<strong>and</strong>le your product, <strong>the</strong> physical layout of your plant, <strong>and</strong> your production <strong>and</strong> accessneeds.The different types of guards <strong>in</strong>clude:• fixed guards – <strong>in</strong>clud<strong>in</strong>g nip guards• guard<strong>in</strong>g for conveyors• <strong>in</strong>terlock<strong>in</strong>g guards• presence-sens<strong>in</strong>g devices – <strong>in</strong>clud<strong>in</strong>g trip guards• self-adjust<strong>in</strong>g guards4:9


• distance guards/fences• partial guards.Hazards may not require guard<strong>in</strong>g if <strong>the</strong>y are ‘safe by position’, ie, <strong>the</strong>y are ei<strong>the</strong>r over 2.4mhigh or are <strong>in</strong> a position that, at all times, means <strong>the</strong>y can’t be reasonably reached.The follow<strong>in</strong>g pages look at <strong>the</strong>se different guards <strong>and</strong> where you should use <strong>the</strong>m.First th<strong>in</strong>gs firstThe layout of your work area affects whe<strong>the</strong>r or not mach<strong>in</strong>e guard<strong>in</strong>g will preventaccidents. For example, if your mach<strong>in</strong>es are <strong>to</strong>o close <strong>to</strong>ge<strong>the</strong>r, mach<strong>in</strong>e guard<strong>in</strong>gmay not improve safety at all.A good fac<strong>to</strong>ry layout:• has clear <strong>and</strong> simple flow l<strong>in</strong>es so staff aren’t near dangerous mach<strong>in</strong>eryunless <strong>the</strong>y need <strong>to</strong> be <strong>and</strong> are unlikely <strong>to</strong> be <strong>in</strong> <strong>the</strong> wrong place at <strong>the</strong> wrongtime• avoids congestion <strong>and</strong> keeps worker activity away from mach<strong>in</strong>es that couldcause problems• keeps <strong>the</strong> collection of rubbish, materials <strong>and</strong> clutter away from mach<strong>in</strong>es• keeps <strong>to</strong> a m<strong>in</strong>imum <strong>the</strong> movement of trucks, people <strong>and</strong> mach<strong>in</strong>es• discourages operational hazards such as blocked access dur<strong>in</strong>g clean<strong>in</strong>g orma<strong>in</strong>tenance.Fixed guardsFixed guards are <strong>the</strong> most widely used. They’re good for provid<strong>in</strong>g protection at <strong>the</strong> directsource of <strong>the</strong> hazard.Fixed guard4:10


✘Unguarded conveyor✔Guarded conveyorHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksGuards should be:• robust <strong>and</strong> made out of material suitable for <strong>the</strong> situation. Mesh is a good choicebecause you can see <strong>the</strong> belts <strong>and</strong> cha<strong>in</strong>s <strong>and</strong> it allows air flow• designed so you can carry out some ma<strong>in</strong>tenance without remov<strong>in</strong>g <strong>the</strong>m, eg, arecessed guard allows you <strong>to</strong> grease <strong>the</strong> mach<strong>in</strong>e without remov<strong>in</strong>g <strong>the</strong> guard orextend <strong>the</strong> grease po<strong>in</strong>ts• colour coded so you can easily recognise <strong>the</strong>m when <strong>the</strong>y’re removed• kept <strong>in</strong> good condition. List <strong>the</strong> guards on your hazard register so <strong>the</strong>y’re <strong>in</strong>cluded <strong>in</strong>your regular check of hazards <strong>and</strong> controls• bolted securely so that a <strong>to</strong>ol is required <strong>to</strong> remove <strong>the</strong>m. W<strong>in</strong>gnuts or similar fix<strong>in</strong>gsare not suitable. You can use h<strong>in</strong>ge guards where <strong>the</strong> guards are <strong>to</strong>o difficult or heavy<strong>to</strong> remove fully, but <strong>the</strong>y <strong>to</strong>o must be secured so that a <strong>to</strong>ol is needed <strong>to</strong> remove <strong>the</strong>m.See AS 4024.1 for <strong>the</strong> st<strong>and</strong>ards required for guards.✘Cha<strong>in</strong> drive not fully guarded✔Fully guarded cha<strong>in</strong> driveFollow <strong>the</strong> rulesHave a work rule that ensures mach<strong>in</strong>es are not operated unless <strong>the</strong> guards aresecurely <strong>in</strong> place.4:11


Nip guardsWherever <strong>the</strong>re are cha<strong>in</strong>s sprockets, belts, pulleys or drives, <strong>the</strong>re are usually <strong>in</strong>-runn<strong>in</strong>gnips, which can be a hazard.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksUse guards <strong>to</strong> enclose <strong>the</strong> danger zone.Guard<strong>in</strong>g of conveyorsWith <strong>the</strong>ir mov<strong>in</strong>g parts, conveyors can cause accidents. For example, timber on a conveyormay cause a trapp<strong>in</strong>g po<strong>in</strong>t when it hits a s<strong>to</strong>p.✘In-runn<strong>in</strong>g nip needs guard<strong>in</strong>g✘Nip po<strong>in</strong>ts on belt need guard<strong>in</strong>gHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksSometimes you can use a nip guard <strong>in</strong>stead of full mach<strong>in</strong>e guards. You can only do thiswhere <strong>the</strong> mach<strong>in</strong>e has no o<strong>the</strong>r hazards.Beware of revers<strong>in</strong>g conveyors. They have <strong>in</strong>-runn<strong>in</strong>g nips at <strong>the</strong> po<strong>in</strong>ts shown. It’s safest <strong>to</strong>fully enclose <strong>the</strong> danger zone.4:12


Guards must only be removed when <strong>the</strong> mach<strong>in</strong>e is locked out (see Section Three of <strong>the</strong>seguidel<strong>in</strong>es on lockout). Guards should be designed so that it takes longer <strong>to</strong> remove <strong>the</strong>mthan it takes for <strong>the</strong> mach<strong>in</strong>e <strong>to</strong> run down.Risky cloth<strong>in</strong>g <strong>and</strong> hairYou need <strong>to</strong> consider more than just apply<strong>in</strong>g guards <strong>to</strong> make sure your staff are safearound conveyors. Staff should not wear loose cloth<strong>in</strong>g <strong>and</strong> long hair needs <strong>to</strong> be tiedup <strong>and</strong> out of <strong>the</strong> way.hazard!✘It’s often better <strong>to</strong> fully enclose <strong>the</strong> <strong>in</strong>-runn<strong>in</strong>gnips on revers<strong>in</strong>g conveyorsNip guards protect danger zonesNote: Distance between nip guards <strong>and</strong> belt must be nomore than 6mmEdge guard6mm maxA19mmNip guard6mm max4:13


Double checkWatch out that when you <strong>in</strong>troduce a guard you don’t create ano<strong>the</strong>r hazard. Whenfirst us<strong>in</strong>g a guard you need <strong>to</strong> work through <strong>the</strong> risk assessment process aga<strong>in</strong> (seepage 4:8) <strong>to</strong> make sure <strong>the</strong> new guards are actually reduc<strong>in</strong>g <strong>the</strong> hazard risk <strong>and</strong> notcreat<strong>in</strong>g new ones.Revolv<strong>in</strong>g shaftsHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksYou must guard revolv<strong>in</strong>g shafts. In some situations you can use a loose-fitt<strong>in</strong>g guard (suchas a power take-off guard on a trac<strong>to</strong>r).The only situation where you don’t need <strong>to</strong> guard a revolv<strong>in</strong>g shaft is where <strong>the</strong> shaft stub isless than 20mm <strong>and</strong> <strong>the</strong> shaft is smooth <strong>and</strong> has no protrud<strong>in</strong>g parts.hazard!✘Shaft needs <strong>to</strong> be guarded or cut off✘✔✘✔4:14


Idle rollersIdle rollers can trap workers.hazard!✘A nip guard is neededHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksYou need <strong>to</strong> guard <strong>the</strong> danger zone around idle rollers. The only situation where you may notneed a guard is where <strong>the</strong> idle roller has little tension – like on <strong>the</strong> return of a conveyor. Butyou must check <strong>to</strong> make sure <strong>the</strong>re is no hazard.O<strong>the</strong>r hazardsTrapp<strong>in</strong>g po<strong>in</strong>tLook for hazards that arecreated by timber or o<strong>the</strong>rproduct hitt<strong>in</strong>g ‘s<strong>to</strong>ps’ orsides of conveyors, etcInterlocked guardsAn <strong>in</strong>terlocked guard is connected with <strong>the</strong> control system – <strong>the</strong> <strong>in</strong>terlock s<strong>to</strong>ps <strong>the</strong> mach<strong>in</strong>eoperat<strong>in</strong>g unless <strong>the</strong> guard is closed. These <strong>in</strong>terlocks are usually electrical, mechanical,hydraulic or pneumatic.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksThe guard itself must not re-start <strong>the</strong> mach<strong>in</strong>e when it is closed. The mach<strong>in</strong>e must only beable <strong>to</strong> be re-started from <strong>the</strong> control panel.Interlocked guards must not be able <strong>to</strong> be overridden.Safe isolationYou must not rely on <strong>in</strong>terlocked guards as <strong>the</strong> only means <strong>to</strong> isolate a particularmach<strong>in</strong>e. Your staff need <strong>to</strong> operate under full isolation/lockout procedures before<strong>the</strong>y enter an area with <strong>in</strong>terlocked guards or gates.4:15


✔Interlocked control room doorIn <strong>the</strong> pho<strong>to</strong> above, <strong>the</strong> opera<strong>to</strong>r is enclosed <strong>in</strong> <strong>the</strong> control room. The door <strong>to</strong> <strong>the</strong> dangerzone is <strong>in</strong>terlocked with a timer that makes sure <strong>the</strong> mach<strong>in</strong>e has s<strong>to</strong>pped completely beforeanyone can enter.Presence-sens<strong>in</strong>g devicesPresence-sens<strong>in</strong>g devices s<strong>to</strong>p all mov<strong>in</strong>g mach<strong>in</strong>e parts when <strong>the</strong>y detect that a person orsometh<strong>in</strong>g has entered <strong>the</strong> danger zone. The devices will only allow <strong>the</strong> mach<strong>in</strong>e <strong>to</strong> be restartedwhen <strong>the</strong> person or object is removed.Presence-sens<strong>in</strong>g devices <strong>in</strong>clude pho<strong>to</strong>electric light curta<strong>in</strong>s, laser scanners <strong>and</strong> pressuremats.Trip guardsTrip guards are a type of presence-sens<strong>in</strong>g device. Trip guards work <strong>in</strong> a variety of ways <strong>to</strong>prevent staff com<strong>in</strong>g <strong>in</strong><strong>to</strong> contact with <strong>the</strong> danger zone.✔Scissor lift protected with a trip guardCheck that aga<strong>in</strong>Carry out a risk assessment with <strong>the</strong> mach<strong>in</strong>e <strong>in</strong> full operation <strong>to</strong> make sure all <strong>the</strong>hazards are controlled by <strong>the</strong> trip guard, <strong>in</strong>clud<strong>in</strong>g any hazards created by <strong>the</strong> guard.4:16


Self-adjust<strong>in</strong>g guardsSelf-adjust<strong>in</strong>g guards enclose <strong>the</strong> blade until a cut is be<strong>in</strong>g made.✔Self-adjust<strong>in</strong>g guard on a dropsawHow <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTh<strong>in</strong>k about us<strong>in</strong>g self-adjust<strong>in</strong>g guards for dock<strong>in</strong>g saws, rip saws <strong>and</strong> cross-cut saws.Distance guards/fencesDistance guards use a barrier or fence <strong>to</strong> prevent workers com<strong>in</strong>g <strong>in</strong><strong>to</strong> contact with <strong>the</strong>danger zone.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksMake sure that any gates or doors of a distance guard around a mach<strong>in</strong>e are kept locked, or<strong>in</strong>stead, use an <strong>in</strong>terlock<strong>in</strong>g guard (see ‘Interlocked guards’ on page 4:15).Partial guard<strong>in</strong>gIf you can’t completely guard a mach<strong>in</strong>e, eg, a circular saw or planer, you can use partialguards.How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksIf you use a partial guard you must also use o<strong>the</strong>r safety measures <strong>to</strong> protect staff, such asrequir<strong>in</strong>g <strong>the</strong>m <strong>to</strong> wear personal protective gear.Try that aga<strong>in</strong>When you move mach<strong>in</strong>es or change processes you need <strong>to</strong> go back <strong>to</strong> <strong>the</strong> start <strong>and</strong>carry out a full risk assessment on <strong>the</strong> mach<strong>in</strong>e or process <strong>to</strong> make sure <strong>the</strong> controlmeasures are still effective.Fenc<strong>in</strong>gIf a mach<strong>in</strong>e has a number of hazards, your best option may be <strong>to</strong> fence off <strong>the</strong> mach<strong>in</strong>eentirely, ra<strong>the</strong>r than try <strong>to</strong> guard all <strong>the</strong> dangerous parts. Fenc<strong>in</strong>g may also work best if youneed easy access <strong>to</strong> <strong>the</strong> mach<strong>in</strong>e.4:17


How <strong>to</strong> m<strong>in</strong>imise <strong>the</strong> risksTo meet requirements fenc<strong>in</strong>g must:• be 1800mm high• have a gap of no more than 200mm from <strong>the</strong> ground• provide a gap of at least 600mm from <strong>the</strong> mach<strong>in</strong>e hazard – <strong>the</strong>re are someexceptions: see AS 4024.1 if you need <strong>the</strong> fence closer.Maximum1800mmM<strong>in</strong>imum600mmMaximum200mmNote: The distance from <strong>the</strong>hazard must be m<strong>in</strong>imum of850mm when 200mm gap atbot<strong>to</strong>m of fenceM<strong>in</strong>imum1800mmMaximum 200mmSee AS 4024.1 for <strong>the</strong> st<strong>and</strong>ards for fences.4:18


✔Fenc<strong>in</strong>g gates restrict<strong>in</strong>g access <strong>to</strong> hazardous areasFor high-use areas or where a number of workers need <strong>to</strong> use <strong>the</strong> mach<strong>in</strong>e, th<strong>in</strong>k about us<strong>in</strong>gan <strong>in</strong>terlocked gate with an isolation/lockout procedure that s<strong>to</strong>ps <strong>the</strong> mach<strong>in</strong>e on entry.This is likely <strong>to</strong> be better practice (<strong>and</strong> cheaper) than guard<strong>in</strong>g all <strong>the</strong> hazards.If you don’t often use <strong>the</strong> mach<strong>in</strong>e, you could <strong>in</strong>stead use a lock <strong>and</strong> key. But you need <strong>to</strong>restrict who can get <strong>the</strong> key <strong>and</strong> you need <strong>to</strong> put up a sign on <strong>the</strong> fence stat<strong>in</strong>g, ‘No entryuntil isolated’.Move it <strong>and</strong> saveIf you have a mach<strong>in</strong>e that needs fenc<strong>in</strong>g, consider mov<strong>in</strong>g it aga<strong>in</strong>st a wall. This mayreduce <strong>the</strong> amount of fenc<strong>in</strong>g you need.Sett<strong>in</strong>g fence <strong>and</strong> guard distancesWork<strong>in</strong>g out <strong>the</strong> right distance <strong>to</strong> place guards <strong>and</strong> fences is called ergonomics. Ergonomicstudies have identified <strong>the</strong> distances ‘most people’ can reach under, over, around or <strong>in</strong><strong>to</strong>.4:19


AS 4024 sets <strong>the</strong> distances from hazards of three types of open<strong>in</strong>gs: slots, squares <strong>and</strong>rounds.Slot Square RoundThe distances for each type are measured as follows:M<strong>in</strong>imum distance from hazard for:Open<strong>in</strong>gs of Slots Squares Rounds0 <strong>to</strong> 6mm 10mm 5mm 5mm7mm – 8mm 20mm 15mm 5mm9mm – 10mm 80mm 25mm 20mm11mm – 20mm 120mm 120mm 120mm21mm – 30mm 850mm 120mm 120mm31mm – 40mm 850mm 200mm 120mm41mm – 120mm 850mm 850mm 850mmNote: Some values allow a greater safety marg<strong>in</strong> than that allowed by AS 4024.14:20


120mm20mm60mm slotHazard850mmM<strong>in</strong>imumdistance4:21


Part ofbodyIllustrationOpen<strong>in</strong>g<strong>Safety</strong> distance srSlot Square RoundF<strong>in</strong>gertipsr e ≤ 4 ≥ 2 ≥ 2 ≥ 2e4 < e ≤ 6 ≥ 10 ≥ 5 ≥ 5F<strong>in</strong>ger up<strong>to</strong> knucklejo<strong>in</strong>tsr6 < e ≤ 8 ≥ 20 ≥ 15 ≥ 5e8 < e ≤ 10 ≥ 80 ≥ 25 ≥ 2010 < e ≤ 12 ≥ 100 ≥ 80 ≥ 80or h<strong>and</strong>sre12 < e ≤ 20 ≥ 120 ≥ 120 ≥ 12020 < e ≤ 30 ≥ 850 ≥ 120 ≥ 120Arm up <strong>to</strong>junctionwithshouldersre30 < e ≤ 40 ≥ 850 ≥ 200 ≥ 12040 < e ≤ 120 ≥ 850 ≥ 850 ≥ 850See AS 4024.1 if you have any open<strong>in</strong>gs greater than 120mm.Adm<strong>in</strong>istrative controlsThere is a range of measures you need <strong>to</strong> th<strong>in</strong>k about us<strong>in</strong>g, along with physical guards. Themeasures expla<strong>in</strong>ed <strong>in</strong> <strong>the</strong> follow<strong>in</strong>g pages are <strong>the</strong> very least you should do <strong>to</strong> improve safetyfor staff work<strong>in</strong>g with mach<strong>in</strong>es.SignageIf you’re unable <strong>to</strong> lessen a hazard risk <strong>in</strong> any o<strong>the</strong>r way, at least put up warn<strong>in</strong>g signs.See Section One of <strong>the</strong>se guidel<strong>in</strong>es on safe access for more details on signagerequirements.Inspection, clean<strong>in</strong>g <strong>and</strong> ma<strong>in</strong>tenanceRegular <strong>in</strong>spection, clean<strong>in</strong>g <strong>and</strong> ma<strong>in</strong>tenance of mach<strong>in</strong>es are <strong>the</strong> basic steps you can take<strong>to</strong> make your workplace safer for your staff.You must isolate or lock out any mach<strong>in</strong>ery that is be<strong>in</strong>g worked on or cleaned. (See SectionThree of <strong>the</strong>se guidel<strong>in</strong>es on lockout.)4:22


Make sure that all your workers underst<strong>and</strong> what is required so <strong>the</strong>se tasks can be carriedout safely.Requirements of <strong>Health</strong> <strong>and</strong> <strong>Safety</strong> <strong>in</strong> Employment Regulations 1995You need <strong>to</strong> check <strong>the</strong> operation of your workplace’s mach<strong>in</strong>ery meets <strong>the</strong> Regulations’requirements. The Regulations cover:Mach<strong>in</strong>eBreast bench <strong>and</strong> circular sawCross-cut circular saw, eg, radial arm sawThicknesser, edgerOverh<strong>and</strong> planerFoot-controlled mach<strong>in</strong>esMust have…• riv<strong>in</strong>g knife <strong>and</strong> push sticks• a limit<strong>in</strong>g device that prevents <strong>the</strong> saw mov<strong>in</strong>gbeyond <strong>the</strong> edge nearest <strong>the</strong> opera<strong>to</strong>r• device <strong>to</strong> prevent rebound<strong>in</strong>g <strong>and</strong> adequateh<strong>and</strong>holds• anti-kickback f<strong>in</strong>gers or similar• a cyl<strong>in</strong>drical cutt<strong>in</strong>g block <strong>and</strong> cutter beh<strong>in</strong>d <strong>the</strong>fence <strong>to</strong> be guarded• effective cover with sufficient clearance for <strong>the</strong>opera<strong>to</strong>r’s foot, or• an effective lock<strong>in</strong>g deviceStress <strong>and</strong> fatigueStaff can lose <strong>the</strong>ir concentration <strong>and</strong> react more slowly if <strong>the</strong>y’ve been work<strong>in</strong>g long hoursor for long periods without proper breaks. This <strong>in</strong>creases <strong>the</strong> likelihood of <strong>the</strong>ir mak<strong>in</strong>gmistakes. Excessive heat, poor air flow <strong>and</strong> poor opera<strong>to</strong>r comfort (eg, bad seat<strong>in</strong>g positions,awkwardly located controls) can also cause loss of concentration.There may be o<strong>the</strong>r stresses <strong>in</strong> <strong>the</strong> workplace that you’ll also need <strong>to</strong> manage. See <strong>the</strong> OSHguidel<strong>in</strong>e on <strong>Health</strong>y Work – Manag<strong>in</strong>g Stress <strong>and</strong> Fatigue <strong>in</strong> <strong>the</strong> Workplace on <strong>the</strong> OSHwebsite (www. dol.<strong>govt</strong>.<strong>nz</strong>).Light<strong>in</strong>gYou can decrease <strong>the</strong> likelihood of <strong>in</strong>jury <strong>and</strong> harm happen<strong>in</strong>g if you make sure <strong>the</strong> areaaround mach<strong>in</strong>es is clearly lit. Th<strong>in</strong>k about <strong>the</strong>:• direction <strong>and</strong> <strong>in</strong>tensity of light<strong>in</strong>g• contrast between background <strong>and</strong> local light<strong>in</strong>g• colour of <strong>the</strong> light source• reflection, glare <strong>and</strong> shadows created by <strong>the</strong> lights• strob<strong>in</strong>g effect of fluorescent lights on mov<strong>in</strong>g mach<strong>in</strong>ery. (It can make mov<strong>in</strong>g partsof mach<strong>in</strong>ery look as if <strong>the</strong>y’re s<strong>to</strong>pped.)See AS/NZS 1680.2.4 : 1997 : Interior light<strong>in</strong>g – Industrial Tasks & Processes for moredetailed <strong>in</strong>formation on good light<strong>in</strong>g practice.NoiseYou need <strong>to</strong> take whatever steps you can <strong>to</strong> lessen <strong>the</strong> level of noise <strong>in</strong> <strong>the</strong> workplace.Noise, particularly excessive noise, can create hazards. It can make communication difficult,which can cause confusion. Noise can also cause a worker <strong>to</strong> lose concentration or cause4:23


<strong>the</strong>m stress, which can lead <strong>the</strong>m <strong>to</strong> make mistakes. Workers exposed <strong>to</strong> excessive noise,even for short periods, may suffer permanent hear<strong>in</strong>g loss.If you can’t avoid high noise levels, make sure your staff wear properly fitt<strong>in</strong>g hear<strong>in</strong>gprotection that’s suitable for <strong>the</strong> noise level. Often <strong>the</strong> use of well designed guards formov<strong>in</strong>g parts can help lessen <strong>the</strong> noise <strong>and</strong> reduce its stressful effects on your staff.Double upMaybe you can double up on your sound proof<strong>in</strong>g <strong>and</strong> guard<strong>in</strong>g measures – anacoustic hood that features an <strong>in</strong>terlock can help both lessen a hazard <strong>and</strong> reducenoise.Ventilation (air flow)Make sure your mach<strong>in</strong>es <strong>and</strong> workers are gett<strong>in</strong>g enough air while work<strong>in</strong>g. Some processes<strong>and</strong> mach<strong>in</strong>ery produce heat, which can cause staff <strong>to</strong> feel tired <strong>and</strong> slow <strong>the</strong>ir reactions.Us<strong>in</strong>g well designed guards that <strong>in</strong>clude mesh will allow air flow <strong>to</strong> keep your mach<strong>in</strong>es (<strong>and</strong>your staff) from overheat<strong>in</strong>g.Tra<strong>in</strong><strong>in</strong>g/supervisionTra<strong>in</strong><strong>in</strong>g your staff on <strong>the</strong> correct <strong>and</strong> safe way <strong>to</strong> operate mach<strong>in</strong>ery makes it less likely<strong>the</strong>y’ll have an accident <strong>in</strong>volv<strong>in</strong>g <strong>in</strong>jury or harm. Make sure that everyone (whe<strong>the</strong>r <strong>the</strong>y’resupervis<strong>in</strong>g, manag<strong>in</strong>g or operat<strong>in</strong>g <strong>the</strong> mach<strong>in</strong>ery) is given <strong>the</strong> right tra<strong>in</strong><strong>in</strong>g for health <strong>and</strong>safety.Don’t assume…That a worker knows <strong>the</strong> safe way <strong>to</strong> operate mach<strong>in</strong>ery or that <strong>the</strong>y can just pick it upas <strong>the</strong>y go.You need <strong>to</strong> tra<strong>in</strong> staff <strong>in</strong> how <strong>to</strong> operate mach<strong>in</strong>ery safely <strong>and</strong> <strong>the</strong> actions <strong>the</strong>y need <strong>to</strong> take<strong>to</strong> control hazards while operat<strong>in</strong>g <strong>the</strong> mach<strong>in</strong>ery, such as mak<strong>in</strong>g sure guards are <strong>in</strong> place atall times mach<strong>in</strong>es are operat<strong>in</strong>g. Tra<strong>in</strong><strong>in</strong>g also needs <strong>to</strong> cover <strong>the</strong> personal protection gearthat may be needed.IsolationExcept for <strong>the</strong> circuits of safety systems, you need <strong>to</strong> fit all your mach<strong>in</strong>ery with a means forisolat<strong>in</strong>g <strong>the</strong>m from all power sources. Make sure <strong>the</strong>se isolat<strong>in</strong>g devices are easy <strong>to</strong> see <strong>and</strong><strong>to</strong> get <strong>to</strong>. It’s important that you are able <strong>to</strong> lock <strong>the</strong>se isolat<strong>in</strong>g devices. See Section Three of<strong>the</strong>se guidel<strong>in</strong>es on lockout for more <strong>in</strong>formation.Operational <strong>and</strong> emergency s<strong>to</strong>p controlsMake sure operational controls <strong>and</strong> emergency s<strong>to</strong>ps are easy <strong>to</strong> see <strong>and</strong> easy <strong>to</strong> get <strong>to</strong> <strong>and</strong>that <strong>the</strong>y’re clearly labelled.4:24


Emergency s<strong>to</strong>p devices must have h<strong>and</strong>les, bars or push but<strong>to</strong>ns that are coloured red <strong>and</strong>can be got <strong>to</strong> immediately if <strong>the</strong>re’s an accident.Emergency s<strong>to</strong>p but<strong>to</strong>ns should be <strong>the</strong> ‘mushroom’ type <strong>and</strong> not recessed <strong>in</strong><strong>to</strong> <strong>the</strong> mach<strong>in</strong>e.Trip wires should be easy <strong>to</strong> operate <strong>and</strong>, if <strong>the</strong>y use a s<strong>in</strong>gle switch, <strong>the</strong>re must be atension<strong>in</strong>g spr<strong>in</strong>g at <strong>the</strong> opposite end. If <strong>the</strong> trip wire breaks or <strong>the</strong>re is any o<strong>the</strong>r fault, itshould ‘fail <strong>to</strong> safety’.If you have mach<strong>in</strong>es that are operated by foot controls, <strong>the</strong>se controls must be shrouded <strong>to</strong>avoid start<strong>in</strong>g up accidentally.A large mach<strong>in</strong>e may need a number of control switches. These must be of <strong>the</strong> ‘s<strong>to</strong>p-<strong>and</strong>lockout’type.If you have mach<strong>in</strong>es where more than one worker is operat<strong>in</strong>g <strong>the</strong> mach<strong>in</strong>e at <strong>the</strong> same time(such as on production l<strong>in</strong>es <strong>and</strong> conveyors) <strong>the</strong> mach<strong>in</strong>e must have more than one set ofcontrol switches.Mach<strong>in</strong>e operat<strong>in</strong>g checks (see checklist next page)The mach<strong>in</strong>e operat<strong>in</strong>g checklist (Section 4.5) is a useful <strong>to</strong>ol for opera<strong>to</strong>rs, supervisors <strong>and</strong>managers <strong>to</strong> undertake a risk assessment for both exist<strong>in</strong>g <strong>and</strong> new mach<strong>in</strong>ery.Use <strong>the</strong> checklist <strong>to</strong> carry out assessments annually or whenever mach<strong>in</strong>es or processeschange.4:25


4.5 Mach<strong>in</strong>e Operat<strong>in</strong>g ChecklistUndertake a check for each mach<strong>in</strong>e.Mach<strong>in</strong>e: Date of Inspection: Name:1.0 Mach<strong>in</strong>e hazards Yes No Action1.1 Do <strong>the</strong> guards prevent workers’ h<strong>and</strong>s, arms, <strong>and</strong> o<strong>the</strong>r body parts mak<strong>in</strong>g contact withdangerous mov<strong>in</strong>g parts, eg, unguarded gears, sprockets, pulleys, shafts or flywheelson <strong>the</strong> mach<strong>in</strong>e?1.2 Are <strong>the</strong>re any trapp<strong>in</strong>g po<strong>in</strong>ts between <strong>the</strong> product be<strong>in</strong>g processed <strong>and</strong> <strong>the</strong> mach<strong>in</strong>e?1.3 Are <strong>the</strong> guards firmly secured <strong>and</strong> require a <strong>to</strong>ol <strong>to</strong> be removed?1.4 Do <strong>the</strong> guards permit safe, comfortable, <strong>and</strong> relatively easy operation of <strong>the</strong> mach<strong>in</strong>e?1.5 Can <strong>the</strong> mach<strong>in</strong>e be oiled/greased without remov<strong>in</strong>g <strong>the</strong> guard?1.6 Is <strong>the</strong> mach<strong>in</strong>e free from obstructions <strong>and</strong> does it have good access?2.0 Mach<strong>in</strong>e controls Yes No Action2.1 Are start<strong>in</strong>g <strong>and</strong> s<strong>to</strong>pp<strong>in</strong>g controls with<strong>in</strong> easy reach of <strong>the</strong> opera<strong>to</strong>r?3.0 Isolation/lockout/<strong>in</strong>terlock<strong>in</strong>g Yes No Action3.1 Is <strong>the</strong>re a system for isolat<strong>in</strong>g <strong>the</strong> mach<strong>in</strong>e before guards are removed?3.2 Are ma<strong>in</strong>tenance <strong>and</strong> clean<strong>in</strong>g workers tra<strong>in</strong>ed <strong>in</strong> <strong>the</strong> requirements of isolation/lockout?3.3 Are <strong>in</strong>terlocked guards tested <strong>to</strong> ensure <strong>the</strong>y are work<strong>in</strong>g?3.4 Is <strong>the</strong>re ability for multiple lockouts?3.5 Does <strong>the</strong> mach<strong>in</strong>e overrun more than 10 seconds?3.6 If yes <strong>to</strong> Q 3.5 are <strong>the</strong>re controls <strong>to</strong> prevent access eg, time delay?3.7 Are all sources of energy isolated eg, electrical, hydraulic, pneumatic?3.8 Are isolations tested by attempt<strong>in</strong>g <strong>to</strong> start <strong>the</strong> mach<strong>in</strong>e?4:26


4.0 Ergonomic/environmental hazards Yes No Action4.1 Is <strong>the</strong>re signage for operat<strong>in</strong>g controls <strong>and</strong> warn<strong>in</strong>g of any uncontrolled hazards?4.2 Are <strong>the</strong>re any ‘danger zones’ with<strong>in</strong> reasonable reach?4.3 Have appropriate measures been taken <strong>to</strong> safeguard workers aga<strong>in</strong>st noise hazards?4.4 Do ma<strong>in</strong>tenance workers lock out <strong>the</strong> mach<strong>in</strong>e from its power sources before beg<strong>in</strong>n<strong>in</strong>grepairs?4.5 Are <strong>the</strong>re manual h<strong>and</strong>l<strong>in</strong>g issues that require awkward movements or h<strong>and</strong>l<strong>in</strong>g heavyloads?4.6 Is <strong>the</strong>re good ergonomic seat<strong>in</strong>g provided for <strong>the</strong> opera<strong>to</strong>r?4.7 Is <strong>the</strong>re good light<strong>in</strong>g?4.8 Are <strong>the</strong>re o<strong>the</strong>r environmental hazards, eg, dust, fumes, mists?5.0 Tra<strong>in</strong><strong>in</strong>g Yes No Action5.1 Do opera<strong>to</strong>rs <strong>and</strong> ma<strong>in</strong>tenance workers have <strong>the</strong> necessary tra<strong>in</strong><strong>in</strong>g <strong>in</strong> how <strong>to</strong> use <strong>the</strong>safeguards <strong>and</strong> why?5.2 Have <strong>the</strong>y received an <strong>in</strong>duction?5.3 Have opera<strong>to</strong>rs <strong>and</strong> ma<strong>in</strong>tenance workers been tra<strong>in</strong>ed <strong>in</strong> how <strong>and</strong> under whatcircumstances guards can be removed?5.4 Have workers been tra<strong>in</strong>ed <strong>in</strong> <strong>the</strong> procedures <strong>to</strong> follow if <strong>the</strong>y notice guards that aredamaged, miss<strong>in</strong>g, or <strong>in</strong>adequate?5.5 Are <strong>the</strong> guards <strong>in</strong>cluded <strong>in</strong> <strong>the</strong> hazard register?6.0 Personal protective equipment Yes No Action6.1 Is protective equipment required?6.2 If protective equipment is required, is it appropriate for <strong>the</strong> job, <strong>in</strong> good condition, keptclean, <strong>and</strong> s<strong>to</strong>red carefully when not <strong>in</strong> use?6.3 Is <strong>the</strong> opera<strong>to</strong>r dressed safely for <strong>the</strong> job, ie, no loose-fitt<strong>in</strong>g cloth<strong>in</strong>g or jewellery?6.4 Can <strong>the</strong> exist<strong>in</strong>g guards be improved?6.5 If yes <strong>to</strong> Q 6.4 how?4:27


4:28


Section FiveFur<strong>the</strong>r Information5:1


5:2


5.1 Fur<strong>the</strong>r <strong>in</strong>formationAccident Compensation Corporation (ACC)Occupational <strong>Safety</strong> <strong>and</strong> <strong>Health</strong> (OSH)Timber Industries FederationFITEC (Industry Tra<strong>in</strong><strong>in</strong>g Organisation)St<strong>and</strong>ards New Zeal<strong>and</strong>www.acc.co.<strong>nz</strong>www.dol.<strong>govt</strong>.<strong>nz</strong>www.<strong>nz</strong>tif.co.<strong>nz</strong>www.tra<strong>in</strong><strong>in</strong>g.org.<strong>nz</strong>www.st<strong>and</strong>ards.co.<strong>nz</strong>5:3


5:4

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!