WORLD CLASS WINCHES
RELIABLE - DEPENDABLE - UNCOMPLICATED
85
Symptom
Probable cause
Action
5. The winch will not
reach required
rope speed
6. Hydraulic oil is
foaming
7. Winch does not
pull rated load
1. Engine rpm too low
2. Hydraulic oil filter dirty
3. Defective hydraulic motor
4. Hydraulic oil too hot
5. Defective hydraulic pump
6. Directional control valve
defect
1. Suction channel sucks air
2. Oil return line ends over
the oil surface in tank
3. Ambient temperature too
high for the hydraulic oil
1. System relief valve set too
low
– Increase engine rpm
– Clean or replace filter
– Replace motor or
contact authorized
repair service
– Let the oil cool down
– Replace pump or
contact authorized
repair service
– Clean or replace valve
– Check connections
– Extend the return line
– Change to more heat
resistant hydraulic oil
or let the system cool
down
– Check and set the
relief pressure
Troubleshooting