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{"title":"Hydraulic Main Piston Pump 708-2G-00024 708-2G-00022 708-2G-00023 For Komatsu","imgUrl":"https:\/\/img.chinax.com\/nimg\/b7\/b5\/79dc0aa9388fd985c6a0adc99d96-200x200-1\/hydraulic_main_piston_pump_708_2g_00024_708_2g_00022_708_2g_00023_for_komatsu_pc300_7_pc350_7_pc360_7_excavator_spare_parts.jpg","attrs":{"Payment Terms":"T\/T","Condition":"New \/ Rebuilt","Packaging Details":"Dimension: L60\u00d7W60\u00d7H80 cm","Delivery Time":"3-8 Working Days"}}
{"title":"Hydraulic Main Piston Pump 708-2H-00026 708-2H-00022 708-2H-00450 For Komatsu","imgUrl":"https:\/\/img.chinax.com\/nimg\/cc\/08\/5dc72be9844a08bac6dbf5d9f7e5-200x200-1\/hydraulic_main_piston_pump_708_2h_00026_708_2h_00022_708_2h_00450_for_komatsu_pc400_7_pc450_7_pc400_8_pc450_8_excavator_spare_part.jpg","attrs":{"Payment Terms":"T\/T","Condition":"New \/ Rebuilt","Transportation Method":"DHL, UPS, FedEx, Sea Freight","Warranty":"6 Months"}}
Komatsu PC400-6 Hydraulic Main Piston Pump - A robust, fully mechanical control system designed for heavy-duty mining and earthmoving operations with high reliability and automatic displacement adjustment.
OLSS Open Center Load Sensing System, mechanical regulator with LS load sensing valve & PC constant power valve, No EPC solenoid valve
Product Features
This main pump assembly is directly driven by engine flywheel. It adopts fully mechanical control and automatically adjusts pump displacement according to load. Simple structure with high reliability, widely used for heavy-duty mining and earthmoving operations.
Common Fault Analysis
Weak movement when hot, acceptable performance when cold - 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 - Misadjustment or stuck spool of PC power valve; EPC solenoid malfunction, pump displacement cannot be reduced, absorbed power exceeds engine output.
Slow movement of whole machine - Clogged or damaged coil of EPC solenoid valve; stuck LS valve spool; worn internal pump parts leading to insufficient flow.
Large case drain flow - Internal pump wear causes high-pressure oil internal leakage, which flows out from pump case drain port.
Product Images
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...