Lever Hoists
PAGE: 13
Model LH
689 SW 7
th
Terrace, Dania Beach, FL 33004 | (954) 367-6116
Visit WWW.ACIHOIST.COM for the most current information
8.0: TROUBLESHOOTING GUIDE
Problem
Possible Causes
Corrective Action
Pinion shaft does not return to
position after free chaining.
1. Wear of the spline section of
the pinion shaft.
2. Deformation or damage of the
return spring.
3. Mechanism fouled with foreign
matter such as dirt and dust.
Replace with new parts.
Replace with new parts.
Disassemble and clean.
Slip caused by ineffective braking. 1. Worn out friction discs.
2. Oil on the braking surface.
3. Incorrect assembly of the brake
system.
Replace with new ones.
Disassemble and clean.
Assemble correctly.
Load dropped while lowering.
1. Damaged friction discs.
2. Foreign matter in the braking
system.
Replace with new ones.
Disassemble and clean.
Jammed operating handle.
Over-tightening of the brake.
Operate the lever hoist as if
lowering a load.
Noises during hoisting and
lowering operation.
Wear or deformation of the load
chain and load sheave.
Replace with new parts.
Operating handle becomes
difficult to operate during lifting or
lowering operation.
1. Over-hoisting or over-lowering.
2. Twist in the load chain causing
it to get caught between load
sheave and from the load chain.
Operate the hoist in opposite
direction.
Operate the hoist in opposite
direction and remove the twist
load chain guide.
