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Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Specifications
Model Number :
PC400-7 PC400-8 PC450-7 PC450-8
Part No :
706-7K-01040 706-7K-01070 208-26-00211
Place of Origin :
China
Transportation Method :
DHL, UPS, FedEx, Sea Freight
MOQ :
1 set
Delivery Time :
3-7 Weekdays
Price :
Negotiable
Brand Name :
CAVOYD
Payment Terms :
Western Union, T/T, Assurance
Product Name :
Excavator swing assembly
Supply Ability :
100pcs/day
Packaging Details :
Wooden Case / Carton with Foam Protection, or as Required
Certification :
ISO90001
Condition :
New / Rebuilt
Warranty :
6 Months
Description
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator
Procurement Guidelines
  • Verify OEM part numbers: 706-7K-01040, 706-7K-01070, 208-26-00211
  • Confirm assembly compatibility with PC400-7 models, including swing motor, reducer, and parking brake components
  • Request bench test reports for pressure, rotating torque, and internal leakage for both new and remanufactured units
  • For remanufactured assemblies, verify replacement of pistons, valve plates, planetary gears, bearings, and oil seals
  • Inspect housing for cracks and check oil seal integrity upon arrival
  • Protect ports during handling to prevent contamination
  • Secure assembly during transportation to prevent impact damage to shafts and gear components
  • Clean connecting pipelines before installation, replace hydraulic filters, and properly bleed air from system
  • Test swing speed, swing torque, parking brake function, and check for oil leakage after installation
Common Fault Analysis
  • Piston & Valve Plate Wear, High Internal Leakage
    Symptoms: Weak swing power; swing slows under load; temperature rises when hot
    Cause: Dirty hydraulic oil causes wear of friction pairs
  • Planetary Gear / Bearing Damage, Abnormal Noise
    Symptoms: Grinding or knocking noise during rotation; swing jitter
    Cause: Lack of gear oil, gear tooth wear or damaged bearing
  • Parking Brake Failure
    Symptoms: Swing slips on slope; brake cannot release, unable to rotate
    Cause: Damaged brake disc, weak spring, blocked brake oil passage
  • Oil Seal Leakage
    Symptoms: Oil leaks from motor shaft or reducer joint surface
    Cause: Aged seals, high internal pressure, shaft surface scratch
  • Stuck Counterbalance Valve
    Symptoms: Swing jerky, slow start or stop, impact during rotation
    Cause: Dirt stuck in valve spool, spring fatigue
  • Output Shaft Spline Wear
    Symptoms: Power transmission unstable; swing no response under heavy load
    Cause: Spline abrasion due to long-time impact load
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211 Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
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Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211

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Product Detail
Model Number :
PC400-7 PC400-8 PC450-7 PC450-8
Part No :
706-7K-01040 706-7K-01070 208-26-00211
Place of Origin :
China
Transportation Method :
DHL, UPS, FedEx, Sea Freight
MOQ :
1 set
Delivery Time :
3-7 Weekdays
Contact Supplier
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211
Swing Motor Reducer Assembly for Komatsu PC400-7 PC450-7 PC400-8 PC450-8 Excavator 706-7K-01040 706-7K-01070 208-26-00211

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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