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Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Specifications
Payment Terms :
Western Union, T/T, Assurance
Warranty :
6 Months
Model Number :
HM400-3 HM400-3R HM400-3M0
MOQ :
1 set
Delivery Time :
3-7 Weekdays
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Certification :
ISO90001
Product Name :
Hydraulic fan motor
Packaging Details :
Wooden Case / Cartonwith Foam Protection, or as Required
Price :
Negotiable
Condition :
New / Rebuilt
Supply Ability :
100pcs/day
Brand Name :
CAVOYD
Place of Origin :
China
Part No :
708-7P-00020 708-7P-00030 708-7W-00230
Description
708-7P-00020 / 708-7P-00030 / 708-7W-00230 Komatsu HM400-3 / HM400-5 Fan Motor
Core Function

Drives the cooling fan to dissipate heat from the engine and hydraulic system. Automatically reduces speed at idle or low temperature to save fuel and reduce noise, and increases speed under high temperature or heavy load to ensure adequate cooling.

Common Faults & Troubleshooting
  • Fan not rotating / abnormal speed: First determine whether the fault is in the pump or motor—measure the fan motor inlet pressure/flow. If pressure is normal but the fan does not turn, it indicates internal motor wear; if pressure or flow is insufficient, check the fan pump, filter and oil circuit.
  • Abnormal noise / squealing: Worn internal motor bearing, cavitation (air entrained in system), contaminated oil.
  • Unstable fan speed / jitter: Abnormal electronic control signal, seized motor displacement mechanism, air in oil circuit.
  • Oil leakage: Aged shaft oil seal, worn end-cover O-rings.
  • High oil temperature chain reaction: Severe motor internal leakage generates heat, which in turn accelerates wear.
Repair & Purchasing Recommendations
  • Light wear: Replace the oil seal + seal kit and clean the interior.
  • Severe scoring (cylinder block, valve plate, piston): Replace the rotating group parts or the complete motor assembly.
  • Important: After reassembly, always fill the pump/motor with hydraulic oil before starting; running it dry will burn out the motor.
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
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Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230

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Product Detail
Payment Terms :
Western Union, T/T, Assurance
Warranty :
6 Months
Model Number :
HM400-3 HM400-3R HM400-3M0
MOQ :
1 set
Delivery Time :
3-7 Weekdays
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Contact Supplier
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230
Komatsu HM400-3 HM400-5 Radiator Fan Motor 708-7P-00020 708-7P-00030 708-7W-00230

Guangzhou Kawo Construction Machinery Co.,Ltd.

Verified Supplier
1 Years
guangdong, guangzhou
Since 2017
Business Type :
Trading Company, Manufacturer
Main Products :
Construction Hydraulic Pump, Excavator Hydraulic Pump, Hydraulic Control Valve
Total Annual :
$1 Million -US$5 Million
Employee Number :
80~100
Certification Level :
Verified Supplier
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