Excavator Hydraulic Pump 708-1L-00640 708-1L-00641 Komatsu PW95R-2 Main Piston Pump Pressure Pump

Test case drain flow, main pressure and EPC control current first to distinguish electrical/regulator faults from mechanical wear of pump body, avoiding unnecessary purchase of complete pump assembly.

For minor wear: Procure full repair kit (plungers, slippers, valve plate, seals) plus regulator assembly.

For severe scoring on cylinder block and swashplate: High-quality rebuilt pump is optional. New hydraulic pump assembly can be selected for tight schedules. Confirm pump part number and nameplate information before placing orders.

Supporting purchase: Replace hydraulic return filter and pilot filter simultaneously, inspect hydraulic oil to avoid new parts being damaged again by contaminants.