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Insufficient output flow of the fan pump, low fan speed, and engine overheating.
Low pressure of the auxiliary pump and slow response of pilot control.
Abnormal noise during pump operation accompanied by housing vibration.
Oil leakage at the pump mating surface and shaft end, damaged oil seals and gaskets.
Wear of internal gears and flow distribution components, leading to pump overheating.
Severe pressure fluctuation and unstable fan speed.
Purchasing Recommendations
Verify part numbers and machine serial number to confirm compatibility with the Komatsu hydraulic excavator.
Prioritize OEM parts or high-quality remanufactured parts; be cautious of low-cost generic spare parts.
Inspect the pump housing for cracks, and check the 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 a warranty from the supplier and retain the factory inspection report.
Replace hydraulic oil and clean the hydraulic circuit during assembly replacement to prevent secondary wear caused by contaminants.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Trading Company,Manufacturer
Year Established:
2017
Total Annual:
$1 Million -US$5 Million
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Guangzhou Kawo Construction Machinery Co., Ltd.
Company Profile
Professional Excavator Hydraulic Products Manufacturer & Service Provider
Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ... Guangzhou Kawo Construction Machinery Co., Ltd.
Company Profile
Professional Excavator Hydraulic Products Manufacturer & Service Provider
Founded in 2017, Guangzhou Kawo Construction Machinery Co., Ltd. is a professional manufacturer and service provider specializing in excavator hydraulic produ...
