Komatsu D65EX-15 & D65PX-15 Dozer Shop Manual

Comprehensive service and repair manual for Komatsu D65EX-15 and D65PX-15 dozers. Covers structure, function, testing, disassembly, and assembly. Ref: SEBM029508

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Document Details

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Document Number / Seller:
29023 / Joseph Anderson
File Size:
74.91 MB
File Type:
PDF
Language:
English
Pages:
922
Printable:
Yes
Category:
Dozer
Last updated / verified
Aug 13, 2025

Models Covered & Key Technical Specifications

Comprehensive Repair Wiring Manual: Dozer Komatsu D65EX-15 & D65PX-15 Dozer 2008-Present - Comprehensive Service, Maintenance & Repair Manual Operations-Manual Machine Name and Type: D65EX-15 / D65PX-15 Serial Number: 67001 and up Power Train: Planetary gear system Work Equipment: Blade supporting method Engine: Komatsu SA6D125E-3 diesel engine Transmission: 3 forward/3 reverse gear speeds Factory Load Capacity: 20,000 kg (D65EX-15) Certified Environmental Range: 30 degrees gradeability Engineered RPM Specs: 1950 rpm rated engine output Verified Installation Footprint: 3,455 mm overall width (D65EX-15) Designated Threaded Fastener Data: Not specified in excerpt Integral Voltage Specs: 24V starter motor, 50A alternator

Manual Description & Preview

Comprehensive Repair Wiring Manual: Dozer Komatsu D65EX-15 & D65PX-15 Dozer 2008-Present - Comprehensive Service, Maintenance & Repair Manual Operations-Manual

Diagnostic-Area: Engine related parts // Coverage-Scope: 10-118 // System-Identifier: Hydraulic

Komatsu D65EX-15 & D65PX-15 Dozer Specifications Overview

Component System-Path Context
Engine Engine Assembly Lubrication & Cooling
Power Train Transmission Planetary Gear System
Undercarriage Track Frame Recoil Spring System
Work Equipment Hydraulic System Blade Control
Hydraulic System Cooling Fan Pump Lubrication System
Control Valve PPC Valve Blade & Ripper Control

Table of Contents Summary:

    1. GENERAL
    1. STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
    1. TESTING AND ADJUSTING
    1. DISASSEMBLY AND ASSEMBLY
    1. OTHERS The documentation provides guidance on system structures, maintenance standards, testing procedures, disassembly instructions, and component overviews. It covers various systems including the engine, power train, transmission, hydraulic systems, work equipment, and undercarriage components. Specific sections detail the operation and maintenance of the cooling fan pump, HSS system, brake valve, and PPC valves for blade and ripper functions. Torque specifications for critical components are also included to ensure proper assembly and vibration dampening.

FAQ

Calculate the **precise** pressure specifications for the hydraulic system? keyboard_arrow_down

1.18 MPa {12 kg/cm2} is the charged gas pressure for the accumulator, and the max. using pressure is 6.86 MPa {70 kg/cm2}. The specifications for bypass valve set pressure are 0.15 ± 0.03 MPa {1.5 ± 0.3 kg/cm2}.

What values are required for **proper** assembly sequence? keyboard_arrow_down

Backlash between gear A and gear B requires a standard clearance of 0.06 – 0.65 mm, with a clearance limit of N/A. Backlash between gear A and planetary pinion requires 0.14 – 0.35 mm standard clearance.

Assess the **standard** service interval parameters? keyboard_arrow_down

The engine oil change interval depends on fuel sulfur content; for content above 1.0%, the interval is 1/4 of the regular interval. For low ambient temperatures below 0°C (32°F), SAE10W, SAE10W-30, and SAE15W-40 engine oils are recommended, even if temperatures rise during the day.

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