Haklift Oy
Asessorinkatu 3-7
20780 Kaarina, Finland
Tel. +358 2 511 5511
www.haklift.com
Lifting Solutions Group
Axel Johnson International
7. General
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Overload limiting clutch:
The overload limiting clutch is designed to allow the intermediate gear to
slip on an excessive overload. An overload is indicated when the hoist will not raise the load. Also,
some clutching noise may be heard if the hoist is loaded beyond rated capacity.
Caution: If the load being lifted exceeds the lifting capability of the overload clutch, the motor will
continue to run, causing overheating of both clutch and motor. Under no circumstance should the
clutch be allowed to slip for more than a few seconds.
◼
Chain bag:
For installations where the slack chain hanging from the hoist may be objectionable or
hazardous, the use of a chain container is highly recommended
◼
Load chain:
The chain should feed smoothly into and away from the hoist and hook block If the
chain binds, jumps or is noisy, First clean and lubricate the chain, if trouble persists inspect chain
and mating parts for wear, distortion and other damages.
◼
Load chain lubrication:
Always lubricate load chain weekly or more frequently depending on
severity of service. Be sure the lubricant reaches the bearing surfaces between the links. Remove
the excess oil from the chain.
◼
Chain end stop:
The end stop on the dead-end chain should be mounted on the 11th link. (No less
than 11 links should be in between the dead-end and the chain stop).
◼
Load chain cleaning:
Clean the load chain with acid-free solvent and coat with new ISO VG-320 or
equivalent gear oil. Wipe excess Oil to prevent dripping. Never apply grease to the chain
8. Chain replacement
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With chain in hoist
1.
With the unit placing on workbench or motor up position, run the hook to its up limit.
2.
Remove the load block assembly from the old chain.
3.
Make a “C” link, attach the new chain to the load end of the old chain.
4.
Carefully pull the trigger and run the joined pieces of chain into the lifting motor until about 40cm
of new chain comes out the other side.
5.
Remove the “C” link and the old chain. Remove the chain stop from the old chain by a hex head
screwdriver.
6.
Attach the chain stop to the slack end of the new chain by capturing the 12th link with the two
stop halves. Be sure there are no twists in the chain.
7. Attach the load block on new chain by a hex head screwdriver.
◼
Without chain in hoist
1.
With the unit placing on workbench, run the hook to its up limit.
2.
Remove the load block assembly from the old chain.
3.
Remove the chain stop from the old chain.
4.
Carefully pull the trigger and detach the old chain out of the lifting motor.
