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Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Specifications
Warranty :
6 Months
Delivery Time :
3-7 Weekdays
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Supply Ability :
100pcs/day
Brand Name :
CAVOYD
Place of Origin :
China
Product Name :
Excavator main control valve
Model Number :
PC400-7 PC400-8 PC450-7 PC450-8
Packaging Details :
Wooden Case / Carton with Foam Protection, or as Required
Price :
Negotiable
Certification :
ISO90001
Payment Terms :
Western Union, T/T, Assurance
Part No :
723-47-27500 723-47-27501 723-47-27503 723-47-27507
MOQ :
1 set
Condition :
New / Rebuilt
Description
Main Control Valve Part Numbers 723-47-27500, 723-47-27501, 723-47-27503, 723-47-27507
Compatible with Komatsu PC400-7, PC450-7, PC400-8, PC450-8 excavators
Common Faults & Solutions
  • Spool and Valve Bore Wear
    Symptoms: Weak digging force; performance worsens when hot; boom/arm cylinder drifts; high hydraulic oil temperature
    Cause: Dirty hydraulic oil scratches spool and valve bore
  • Stuck Spool
    Symptoms: Heavy joystick, delayed boom, arm, bucket and travel action; no movement if spool stuck at neutral
    Cause: Oil contamination, oil sludge, damaged return spring
  • Main Relief Valve & Pressure Compensator Failure
    Symptoms: Low digging pressure, pressure fluctuation, whistling noise; poor coordination of combined actions
    Cause: Worn valve spool, fatigued spring, clogged damping orifice
  • O-Ring Damage
    Symptoms: Oil seepage between valve plates and end covers
    Cause: Aged sealing rings, loose bolts, air suction leading to cavitation
  • LS Shuttle Valve and Orifice Blockage
    Symptoms: Abnormal LS signal pressure, poor matching between pump and valve, high fuel consumption and overheating
    Cause: Fine impurities block the load-sensing oil passage
  • Holding Valve Seal Failure
    Symptoms: Boom and arm sink slowly, more serious under heavy load
    Cause: Dirt or wear on the sealing surface of holding valve
  • Proportional Solenoid Valve Malfunction
    Symptoms: Action unstable, limited power, fault code appears
    Cause: Coil aging, stuck spool, poor wiring connector contact
  • Valve Block Cracking
    Symptoms: Sudden heavy oil leakage, unable to build hydraulic pressure
    Cause: Long-term pressure impact, uneven bolt tightening torque, casting defects
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
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Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators

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Product Detail
Warranty :
6 Months
Delivery Time :
3-7 Weekdays
Transportation Method :
DHL, UPS, FedEx, Sea Freight
Supply Ability :
100pcs/day
Brand Name :
CAVOYD
Place of Origin :
China
Contact Supplier
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators
Main Control Valve 723-47-27500 723-47-27501 723-47-27503 723-47-27507 For Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavators

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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