STRUCTURALS 5540F/YB5515 SERVICE MANUAL
11-28
Troubleshooting
.
Trouble Possible Cause Remedy
Winch won’t hold load.
1. Excessive back pressure in the
winch circuit.
2. Brake discs are worn out.
1. Check the circuit or restrictions
reduce the back pressure.
2. Replace the brake discs.
Winch will not raise the load.
1. Relief valve setting may be too
low.
2. Load being lifted exceeds
maximum load.
1. Increase relief valve setting.
2. Reduce the load.
Winch will not lower the load.
1. The winch brake valve was not
properly hooked up after being
disconnected.
2. Metering hole in brake valve the
cartridge is plugged
1. Check plumbing and connect
connect lines properly.
2. Remove and clean cartridge.
Oil leaks from vent on motor side of the
winch.
1. Failed motor shaft seal.
2. Failed brake piston seals.
1. Replace the shaft seal and reduce
back pressure if that is what
caused the failure.
2. Service the brake section and
replace worn parts.
Reference Only
To Next Page
Loading...
Need help?
General
