Komatsu Wheel Loader Fan Pump
Part Numbers: 708-1S-00230, 708-1S-00370
Compatible Models: Komatsu WA380-5, WA450-5, WA470-5 Wheel Loaders
Common Faults & Symptoms
- Fan does not rotate or rotates at low speed, resulting in poor heat dissipation and elevated hydraulic oil and engine coolant temperatures
- Abnormal noise from fan pump, typically caused by internal component wear and damaged bearings
- Oil seepage or leakage on pump body due to aging oil seals and cracked housing
- Insufficient output pressure from worn valve plate, failing to build adequate system pressure
- Pump body overheating caused by contaminated hydraulic oil and clogged suction filter