Komatsu D20, D21A,P,PL bulldozer shop manual

Table of Contents

00 General

• Foreword
• Safety
• General Information
• Specifications
• Maintenance Standard
• Torque Specifications

01 Structure and Function

• Engine
• Transmission
• Steering System
• Undercarriage
• Hydraulic System
• Electrical System
• Frame and Cab

02 Testing and Adjusting

• Engine Tests and Adjustments
• Transmission Tests and Adjustments
• Steering System Tests and Adjustments
• Hydraulic System Tests and Adjustments
• Electrical System Tests and Adjustments

03 Disassembly and Assembly

• Engine Disassembly and Assembly
• Transmission Disassembly and Assembly
• Steering System Disassembly and Assembly
• Undercarriage Disassembly and Assembly
• Hydraulic System Disassembly and Assembly
• Electrical System Disassembly and Assembly
• Frame and Cab Disassembly and Assembly

04 Maintenance Standard

• Periodic Maintenance
• Maintenance Procedures
• Lubrication Chart
• Maintenance Checklists

05 Repair and Replacement of Parts

• Engine Overhaul
• Transmission Overhaul
• Steering System Overhaul
• Undercarriage Overhaul
• Hydraulic System Overhaul
• Electrical System Overhaul
• Frame and Cab Repairs

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