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Home > Products > Excavator Main Control Valve >
Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100

Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100

709-99-15100

Main Control Valve For Komatsu PC600-8

709-99-15100 main control valve

Place of Origin:

China

Brand Name:

CAVOYD

Certification:

ISO90001

Model Number:

PC600-8 PC600LC-8 PC650-8

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Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100 Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100 Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100 Komatsu PC600-8 650-8 excavator main control valve is 709-99-15100
Product Details
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Payment Terms:
Western Union, T/T, Assurance
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Product Name:
Excavator Control Valve
Condition:
New / Rebuilt
Warranty:
6 Months
Part No:
709-99-15100
Highlight:

709-99-15100

,

Main Control Valve For Komatsu PC600-8

,

709-99-15100 main control valve

Payment & Shipping Terms
Minimum Order Quantity
1 set
Price
Negotiable
Packaging Details
Wooden Case / Carton with Foam Protection, or as Required
Delivery Time
3-7 Weekdays
Payment Terms
T/T
Supply Ability
100pcs/day
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CONTACT US
86--18127821703
280835749@qq.com
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Product Description
Komatsu PC600/650-8 Excavator Main Control Valve
Part Number: 709-99-15100
Procurement Recommendations
  • Verify OEM part number and confirm valve assembly compatibility with complete boom, arm, bucket, and travel spool sections
  • Ensure new or remanufactured valves include hydraulic bench test reports covering pressure, flow, and internal leakage for each section
  • For remanufactured valves, confirm spools are new or honed and repaired, with replacement of all O-rings, relief valves, check valves, pressure compensators, and LS shuttle valves
  • Inspect valve block for cracks upon arrival and protect oil ports to prevent dirt contamination
  • Secure the valve during transportation to avoid impact damage to ports and precision spools
  • Clean hydraulic tank and pipelines before installation, replace all hydraulic filters, and bleed air from the system
  • Test boom, arm, bucket, travel movement, cylinder drift, and system relief pressure after installation
Common Faults & Solutions
Spool & Valve Bore Wear, Excessive Internal Leakage
Symptoms: Weak digging power; performance worsens when hot; cylinder drift and high oil temperature
Cause: Contaminated oil scratches spool and bore, increases clearance
Stuck Spool, Slow or Jerky Action
Symptoms: Stiff control lever, delayed movements; no operation if spool stuck at neutral
Cause: Dirt, oil sludge, deformed or broken return spring
Main Relief Valve / Pressure Compensator Failure
Symptoms: Low working pressure, pressure fluctuation, whistling noise, poor combined action
Cause: Worn valve parts, fatigued spring, clogged orifice
Damaged O-rings, External Oil Leakage
Symptoms: Oil seepage between valve slices and end caps
Cause: Loose bolts and aged seals, air ingress triggers cavitation
Clogged LS Shuttle Valve and Orifice
Symptoms: Abnormal LS signal pressure, poor pump-valve matching, overheating and high fuel consumption
Cause: Fine contaminants block load-sensing passages
Holding Valve Seal Failure, Cylinder Drift
Symptoms: Boom/arm sinks slowly, worse under heavy load
Cause: Dirt or wear on sealing surface of holding valve
Valve Block Cracking (Rare but Serious)
Symptoms: Sudden heavy oil leakage, unable to build pressure
Cause: Pressure shock, uneven bolt torque, casting defects
Komatsu PC600/650-8 Excavator Main Control Valve component view Komatsu PC600/650-8 Excavator Main Control Valve installation diagram
Tags：

control valve assembly

main control valve

main control valve assembly

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Guangzhou Kawo Construction Machinery Co.,Ltd.
With 20 years of professional experience in construction machinery hydraulics, CAVOYD focuses on hydraulic spare parts supply and remanufacturing for excavators, bulldozers and loaders. We mainly supply hydraulic pumps, control valves, swing assemblies, travel assemblies, fan pumps and fan motors. Our parts fit Caterpillar, Komatsu, Volvo, Hitachi, Kobelco, Sany, Doosan and other mainstream brands. We provide high-quality new parts and precision remanufactured parts, serving global clients wit
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