JIB CRANES WITH AN ARTICULATED ARM MANUALLY ROTATED

DONATI SOLLEVAMENTI S.r.l. - Via Roma, 55 - 21020 Daverio (VA) - Tel. 0332 942611 - Fax. 0332 948597
4.5 Out of service
4.5.1 Storage and conservation of parts
If the jib crane and its component parts should be put in the warehouse and
kept (storage), to avoid damage or deterioration proceed in the following way:
• Protect the machine surfaces of the plates and the mechanisms with antioxidant products, do not
scratch the surfaces intended for assembling with other parts or the inside of holes.
• The materials are foreseen for indoor or outdoor installation and can be stored for a maximum period of
two years in an environment with the following characteristics:
• protected from atmospheric agents
• relative humidity no more than 80%
• temperatures: minimum –20°C; maximum +60°C
• For a storage period longer than two years ask for conservation procedures from the manufacturer
• If these values should change during the storage, it will be necessary to carry out preliminary checks
before putting the crane into use (see 4.5.2 “Reuse after storage”)
• If in the storage place the temperature exceeds or goes below the values indicated and the relative
humidity is more than 80% prepare protection for the packed packages with barrier bags and hygroscopic
salts.
• For storage in open areas provide:
• raised bases for all items without pallets
• protect all items with barrier bags and hygroscopic salts
• If the crane has been built to operate outside , the parts of the steel structure do not require
special protection;on the contrary, the parts machined on a machine tool (machined surfaces,
wheels, pivots, etc.) must be protected with antioxidant products (transparent varnishes,
grease,etc.)
4.5.2 Reuse after storage
Before putting the jib crane back into use after a long storage period,
the following operations must be carried out:
• Structure:
• eliminate traces of lubricant from the structure
• clean any grease residue from the holes and skim the threads of the holes
• clean the mating surfaces at the joints
• repair any structural damage (scratched surfaces, peeling paint, etc.)
• Mechanisms:
• check for any leakage and if necessary, refill the levels of lubricant.
• verify that the mechanisms are correctly tightened to the related structure.
• eliminate traces of rust from sliding parts which are accessory to the commands.
• lubricate the thrust bearing of the hook and the unpainted mechanisms (shafts, etc.).
• eliminate any residual water from concave parts.
• Electrical equipment:
• eliminate any condense from the motors and terminal boards; dry with jets of air
• check the integrity and functioning of the brakes
• clean the surfaces of the brake gaskets thoroughly, eliminating all traces of humidity, lubricants and
varnishes
• check the integrity and functioning of the limit switches
• check the parts and the electrical components are intact
• dry contactor contacts
• clean closure surfaces thoroughly, clean threaded holes of all containers
• carefully check the functioning and efficiency of the push-button control panel
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