ENGINE STARTS BUT MACHINE DOES NOT OPERATE AT ALL ENGINE STARTS BUT MACHINE DOES NOT OPERATE AT ALL 2) 2) 5-6 NO Is oil level in Abnormal noise hydraulic oil YES YES comes out of tank within hydraulic pump standard level? Do not hydraulic Abnormal noise pump and pump YES comes out of YES connections YES pump make abnormal connection noise? Is primary pilot pressure within NO standard level? YES Is not pilot piping clogged or is not YES oil leakage present on pilot piping? NO ⓐ YES Is gear pump NO delivering oil? NO Cause Remedy Hydraulic pump is broken. ⓐ Pilot valve is faulty. Pilot relief valve is faulty. Gear pump is broken. Replenish specified oil to the standard level.
Disassemble and repair. See item 1). at page 5-5 Clean pilot piping interior or repair piping. Disassemble and repair. Repair or replace. Disassemble and repair. Abnormal noise YES YES comes out of hydraulic pump Do not hydraulic Abnormal noise pump and pump YES comes out of YES comes out of hydraulic pump Abnormal noise S comes out of YES Do not hydraulic pump and pump Abnormal noise comes out of YE S connections make abnormal noise? pump connection Is primary pilot pressure within pump connection