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Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110

Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110

Komatsu PC2000-8 Travel Motor Assembly

Final Drive Assembly For Komatsu PC2000-8

706-7L-01110

Place of Origin:

China

Brand Name:

CAVOYD

Certification:

ISO90001

Model Number:

PC2000-8

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Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110 Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110 Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110 Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7l-01111 706-7l-01110
Product Details
Part No:
706-7L-01110 706-7L-01111
Packaging Details:
Wooden Case / Cartonwith Foam Protection, Or As Required
Warranty:
6 Months
Transportation Method:
DHL, UPS, FedEx, Sea Freight
Payment Terms:
Western Union, T/T, Assurance
Condition:
New / Rebuilt
Product Name:
Excavator Travel Assembly
Highlight:

Komatsu PC2000-8 Travel Motor Assembly

,

Final Drive Assembly For Komatsu PC2000-8

,

706-7L-01110

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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86--18127821703
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Product Description
Excavator Komatsu PC2000-8 Travel Motor Assembly 706-7L-01111 706-7L-01110
Visual & Functional Inspection
Weak Travel on One Side
  • Poor climbing performance, machine pulls to one side while other side works normally
  • Suspect: Internal leakage of travel motor, stuck two-speed valve, dragging brake or cross leakage inside swivel joint
Test Procedure: Swap left & right travel hydraulic lines
  • If fault moves with hoses → problem on main control valve / swivel joint
  • If fault stays on the same side → travel motor / final drive failure
One Side Track Does Not Move
  • No track movement when operating travel joystick
  • Possible causes: Parking brake fails to release (low pilot pressure, stuck brake piston); seized two-speed valve; severely worn valve plate / piston; broken planetary gears
Metal Grinding / Rattling Noise
  • Worse under load, metal chips found in gear oil
  • Suspect: Pitting, broken gear teeth or damaged bearings
Stop operation immediately once metal debris appears, otherwise the whole final drive will be destroyed.
Oil Leakage at Floating Seal
  • Gear oil leaks around sprocket hub
  • Causes: Worn floating seal, scratched sealing surface or blocked breather causing high internal pressure
  • Minor leak: Replace floating seal only. Replace assembly if sealing surface is deeply scored
Brake Slip on Inclines
  • Machine creeps downhill on inclined ground
  • Causes: Worn brake friction discs, fatigued brake springs or oil entering brake chamber
Slow Travel Speed & Speed Shift Failure
  • Failed high-speed shift, only low speed available
  • Causes: Stuck two-speed shift valve or insufficient pilot pressure
Pressure Test (Key Diagnosis)
  • Test working pressure of left and right travel circuits and compare readings
  • Measure drain oil flow from motor drain port. Excessive drain flow indicates worn piston / valve plate and heavy internal leakage
  • Check pilot pressure to confirm parking brake can release properly
Diagnostic Rule:
  • Low working pressure + large drain flow → damaged travel motor
  • Low pressure on both sides → fault on main pump or main control valve LS system, not travel motor
Gear Oil Sample Inspection
Take oil sample from final drive:
  • Fine metal powder: mild wear of bearings / gears
  • Large metal fragments: broken gear teeth, severe assembly damage
External Mechanical & Hydraulic Interference Check
  • Cross leakage of swivel joint seals
  • Blocked or leaking travel hoses
  • Mechanical jam of track, carrier rollers and track rollers
  • Worn spool or failed overload valve of travel section on main control valve
Quick Diagnosis Summary
Symptom Diagnosis
Single-side fault, fault remains after hose swap Travel motor / final drive fault
Single-side fault, fault moves after hose swap Main control valve / swivel joint
Both sides weak at the same time Main pump / main control valve system issue
Metal chips in gear oil Damaged planetary gears or bearings
Komatsu PC2000-8 Excavator Travel Motor Assembly technical diagram
Tags：

travel motor assembly

komatsu final drive

final drive gearbox

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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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