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Never perform maintenance on the hoist while it is supporting a load.
Servicing and repairs should only be carried out by qualified, competent, and responsible
people.
After performing any maintenance to the hoist, always perform a functional test before
returning to service. After the replacement of components, a subsequent inspection by a
competent person is obligatory!
Repair work may only be carried out by a specialist workshop that uses original spare parts.
Before handling lubricants, read the associated product health and safety data information
sheet obtained from the lubricant supplier.
Load Chain
To determine if load chain should be continued in service, check gauge lengths and
condition. Chain worn beyond the maximum allowable gauge length (as shown in Chapter
CHAIN AND HOOKS), nicked, gouged or twisted chain should be replaced before returning the
chain block to service.
It is recommended that you lubricate load chain at least weekly, or more frequently than
normal depending on severity of service. Apply new lubricant over existing layer. Lubricate chain
more frequently in a corrosive environment.
A dry film lubricant, e.g. PTFE spray, should be used in environments where abrasives like
sand, etc., occur. The service life of the load chain can be increased by careful lubrication to 20
- 30 times, compared with a chain that is not serviced.
When lubricating the chain, make sure the chain is in no-load condition so that the oil can
reach the contact points (crown/saddle) of the chain links which are subject to wear.
Make sure that the load chain is lubricated over its entire length, also including the part of
the chain in the housing of the hoist around the load sheave/wheel. Remove excess lubricant
from the chain by wiping with a cloth.
Clean dirty chains with acid free or water based solvent or a similar cleaning agent, to
remove rust or abrasive dust build up. Never heat the chain.
Make sure that no lubricant can penetrate the brake enclosure. This may result in failure of the
brake.
Hand Chain
Hand Chain should be cleaned, inspected and checked for damage.
Hooks
Lubricate the hook shank, the head within the hook yoke and the hook latch pivot points with
the same lubricant used on load chain.
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