Auxiliary Hydraulic Pump for CAT E980K E980L E980M E982M Excavator 339-7808
Procurement Guidelines
- Verify CAT OEM part number to ensure compatibility with CAT excavators and cooling system parameters, including pump body, drive assembly, and seal kit
- New or remanufactured pumps must include hydraulic bench test reports verifying output pressure, flow rate, and internal leakage compliance with OEM specifications
- For remanufactured assemblies, confirm replacement of gears/pistons, bearings, shaft seals, and all sealing components with new parts - no reuse of worn components
- Upon arrival, inspect pump housing for cracks and sand holes, ensure input shaft and keyway are intact, and seal oil ports to prevent contaminant entry
- Secure pump with adequate shock protection during transportation, protecting input shaft and port threads to avoid damage to precision mating surfaces
- Before installation, clean fan hydraulic pipelines, replace corresponding hydraulic filters, and bleed air from system to prevent cavitation and premature component wear
- After installation, commission system and test fan speed regulation function. Check for abnormal noise, oil leakage, and unstable pressure to ensure proper cooling fan speed control