97
Maintenance and Service
Operator's Manual GB
9.6.3
Symptom
Probable cause
Action
Hoist will not turn at rated
speed.
Inadequate hydraulic system
supply volume.
Verify hydraulic system
supply volume and correct
as required.
Damaged hoist motor.
Go to a HIAB service work-
shop to have the motor re-
placed.
Hoist center line is distorted
due to uneven mounting sur-
face.
Contact a HIAB service
workshop.
Binding load carrying
sheaves.
Inspect and repair or lubri-
cate sheaves as required.
Hoist will not hold the load.
The rope is wound onto the
drum in the wrong direction.
Spool rope according to sec-
tion in this manual: Course
and requirements of the
rope.
Clutch assembly is dam-
aged.
Verify and replace as re-
quired.
Brake Friction or Separator
Plates are worn or damaged.
Verify and replace as re-
quired.