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Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Specifications
Delivery Time :
3-8 Working Days
Packaging Details :
Wooden Case / Carton with Foam Protection, or as Required
Supply Ability :
300pcs/day
MOQ :
1 set
Brand Name :
CAVOYD
Model Number :
PC400-6 PC450-6 PC300-6 PC350-6
Product Name :
Hydraulic Pump Assembly
MOQ :
1 Set
Applicable Model :
PC400-6 PC450-6 PC300-6 PC350-6
Place of Origin :
China
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Part No :
708-2G-00191 708-2H-00350 708-2H-00130
Payment Terms :
Western Union, T/T, Assurance
Price :
Negotiable
Condition :
New / Rebuilt
Warranty :
6 Months
Description
Excavator Hydraulic Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Product Overview

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.

Technical Specifications
Model HPV132 Twin Variable Displacement Piston Pump
Part Numbers 708-2H-00191, 708-2H-00350, 708-2H-00120, 708-2H-00130
Application Komatsu PC400-6, PC400LC-6, PC450-6, PC450LC-6 Excavator
Displacement 132cc/rev
Main System Pressure 34.3MPa
Max Total Flow Approx. 540 L/min
Control System 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.
  • Abnormal noise & vibration - Blocked suction filter, air entering suction pipe causing cavitation; damaged pump bearing, broken piston & shoe.
  • Large case drain flow - Internal pump wear causes high-pressure oil internal leakage, which flows out from pump case drain port.
Product Images
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
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Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump

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Product Detail
Delivery Time :
3-8 Working Days
Packaging Details :
Wooden Case / Carton with Foam Protection, or as Required
Supply Ability :
300pcs/day
MOQ :
1 set
Brand Name :
CAVOYD
Model Number :
PC400-6 PC450-6 PC300-6 PC350-6
Contact Supplier
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump
Komatsu PC400-6 PC450-6 PC300-6 PC350-6 Excavator Hydraulic Pump 708-2G-00191 708-2H-00350 708-2H-00130 Main Piston Pump

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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