THE HYDRAULIC MOTOR DOSE NOT GET STARTED THE HYDRAULIC MOTOR DOSE NOT GET STARTED 3) 3) IT TAKES TIME TO ACCELERATE THE MOTOR IT TAKES TIME TO ACCELERATE THE MOTOR 4) 4) 5-15 The hydraulic motor does not get started Cause Remedy The spool does work properly. ( the spool keeps fully open) The anti-cavitation check valve does not work properly. ( the check valve is kept open.) Screw the fitting bolts one more time with correct tightening torque. If the spool turns out to be damaged, it should be repaired or the new one should be used Ditto It takes time to accelerate the motor Cause Remedy The spool does not work properly. The orifice for closing the counterbalance is clogged.
Wrong setting of pressure of the relief valve. Screw the fitting bolts one more time with correct tightening torque. If the spool turns out to be damaged, it should be repaired, or the new one should be used. Remove the foreign matter by disassembling and cleaning. Adjust at the correct value. If the relief valve turns out to be out of order, the new one should be used.