THE SWING UNIT DRIFTS WHEN THE MACHINE IS AT REST ON A SLOPE THE SWING UNIT DRIFTS WHEN THE MACHINE IS AT REST ON A SLOPE 5) 5) 5-12 YES YES Is swing shuttle valve normal? NO YES Is brake spring normal? Is return spring of swing control NO valve normal? NO YES Is drain rate of YES swing motor within standard Is swing relief value? NO ⓐ pressure within standard level? NO Cause Remedy ⓐ Shuttle valve is faulty. Brake spring is faulty. Return spring of swing control valve is faulty. Swing relief valve is faulty. Swing motor is broken. Disassemble and replace. Disassemble and replace. Disassemble and replace. Disassemble and repair or replace. Disassemble and repair.
Adjust swing relief valve pressure or replace swing relief valve.