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Elliott Digger Derrick - TROUBLESHOOTING

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13
TROUBLESHOOTING
Problem: Winch won't hold load
Solution 1: Excessive back pressure in the system. Check the system for restrictions and
reduce the backpressure.
Solution 2: Brake discs are worn out. Replace brake discs.
Solution 3: Winch clutch is slipping. Inspect the clutch and driver for wear and replace worn
parts.
Problem: The winch will not raise the load it should.
Solution 1: Relief valve setting may be too low to allow proper lifting. Increase relief valve
pressure setting.
Solution 2: Load being lifted may be more than the winch's rating. Reduce the load or re-rig to
increase mechanical advantage.
Problem: The winch will not lower the load.
Solution 1: The brake valve was improperly hooked up after being disconnected. Check
plumbing and connect lines properly.
Solution 2: The cartridge in the brake valve may have a plugged metering hole. Remove the
cartridge and clean it if necessary.
Problem: Oil leaks from the vent on the motor side of the winch.
Solution 1: The motor shaft seal may have failed. Replace this seal and reduce backpressure if
that caused the shaft seal to fail.
Solution 2: Brake piston seals may have failed. Service the brake section and replace worn
parts.

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