Excavator Komatsu PC2000-8 Fan Pump Auxiliary Pump Assembly
Part Numbers: 708-2L-00280, 708-2L-00281, 708-2L-01280, 708-2L-06970
The Komatsu PC2000-8 excavator fan pump is a hydraulic fan piston pump specifically designed for this model of large excavator. Compatible with part numbers 708-2L-00280, 708-2L-01280, and 708-2L-06970.
Common Faults
Insufficient output flow of fan pump, low fan speed and engine overheating
Low pressure of auxiliary pump, slow response of pilot control
Abnormal noise during pump operation with housing vibration
Oil leakage at pump mating surface and shaft end, damaged oil seals and gaskets
Wear of internal gears and flow distribution components, pump overheating
Severe pressure fluctuation, unstable fan speed
Purchasing Recommendations
Verify part numbers and machine serial number to confirm compatibility with Komatsu PC2000-8 hydraulic excavator
Prioritize OEM parts or high-quality remanufactured parts; be cautious of low-cost generic spare parts
Inspect pump housing for cracks, check integrity of port threads, input shaft and solenoid valve before acceptance
Confirm the fan pump & auxiliary pump assembly comes with a complete seal kit for easy installation and replacement
Request warranty from supplier and retain factory inspection report
Replace hydraulic oil and clean hydraulic circuit during assembly replacement to prevent secondary wear caused by contaminants