Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
Heavy Duty Balanced Opposed Compressors - Ariel Corporation
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FOR MODELS: JGZ AND JGU SECTION 6 - MAINTENANCE INTERVALS & TROUBLE SHOOTING<br />
Every 6 Years or 48,000 hours (plus Daily/Monthly/6 Months/1, 2<br />
& 4 Years)<br />
1. Replace lubricator distribution blocks.<br />
2. Replace crosshead bushings.<br />
Trouble Shooting<br />
Minor problems can be expected during the routine operation of an <strong>Ariel</strong> compressor. These<br />
troubles are most often traced to liquid, dirt, improper adjustment or to operating personnel<br />
being unfamiliar with <strong>Ariel</strong> compressors. Difficulties of this type can usually be corrected by<br />
cleaning, proper adjustment, elimination of an adverse condition, replacement of a relatively<br />
minor part or proper training of the operating personnel.<br />
Major problems can usually be traced to long periods of operation with unsuitable lubrication,<br />
careless operation, lack of routine maintenance or the use of the compressor for purposes<br />
for which it was not intended.<br />
Recording of the interstage pressures and temperatures on multistage units is valuable<br />
because any variation, when operating at a given load point, indicates trouble in one of the<br />
stages. Normally, if the interstage pressure drops the trouble is in the lower pressure cylinder.<br />
If it rises, the problem is normally in the higher pressure cylinder.<br />
While it would be impossible to compile a complete list of every possible problem, listed<br />
below are some of the more common ones with their possible causes.<br />
Low Oil Pressure<br />
Noise in Cylinder<br />
Problem Possible Causes<br />
Oil Pump relief and/or pressure regulating valve set too low or sticking.<br />
Oil pump or oil pump drive failure.<br />
Oil foaming, as shown in sight glass, from counterweights striking oil surface<br />
(oil level too high) or vortex at strainer inlet (oil level to low) or leaks in<br />
pump suction line.<br />
Cold oil.<br />
Dirty oil filter.<br />
Interior frame oil leaks.<br />
Excessive leakage at bearings.<br />
Improper low oil pressure switch setting.<br />
Defective pressure gauge.<br />
Plugged oil sump strainer.<br />
Improper end clearance in oil pump.<br />
Loose piston.<br />
Piston hitting cylinder head end head or crank end head.<br />
Loose crosshead balance nut.<br />
Broken or leaking valve(s).<br />
Worn or broken piston rings or wear bands.<br />
Valve improperly seated or damaged seat gasket.<br />
Liquids in cylinder.<br />
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