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