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