In the hydraulic anchor windlass system illustrated, if the power to the electric motor is on, but the wildcat turns slowly or not at all, even without a load being applied, and nearly normal pressure is indicated on the high side of the system, the probable cause is the __________. GS-0160

Correct Answer: Option B — relief valve "L" is not closing

If the system maintains pressure but the wildcat fails to move, the relief valve L is likely stuck open. This allows high-pressure fluid to bypass the hydraulic motor and return to the reservoir, preventing the development of sufficient torque to overcome the load, despite the pump operating at normal pressure.