Excavator Hydraulic Pump Komatsu PC200-7K PC210-7K PC230-7K PC240-7K PW220-7K
Product Overview
Main piston pump part numbers: 708-2L-00200, 708-2L-00202, 708-2L-01201. This PC200-7K twin axial variable displacement main piston pump features front and rear pumps integrated into one housing and is directly driven by the engine flywheel. Equipped with Komatsu CLSS Closed Center Load Sensing System (HydrauMind hydraulic intelligent system).
Key Features
- Twin axial variable displacement design
- Integrated front and rear pump housing
- Direct drive from engine flywheel
- Komatsu CLSS Closed Center Load Sensing System
- HydrauMind hydraulic intelligent system
Common Faults & Solutions
Weak Operation When Hot
Wear of pistons and valve plate reduces volumetric efficiency and causes high-pressure internal leakage. Hydraulic oil contamination is the primary trigger.
Engine Lugging & Speed Drop
Stuck or misadjusted PC power valve, one of dual EPC solenoid stuck or failed, pump absorbed power exceeds engine output.
Slow Whole Machine Movement
Damaged coil or stuck spool of EPC solenoid valve; stuck LS valve spool; worn internal pump parts.
Abnormal Noise & Vibration
Blocked suction filter, air ingress in suction pipe causing cavitation; damaged bearing or piston & shoe.
Large Case Drain Flow
Internal wear causes high-pressure oil internal leakage out of pump case drain port.
Product Images