Komatsu PC45MR-5, PC55MR-5 Compact Hydraulic Excavator Shop Service Manual 30001, 20001 and up (SEN06574-17)

This Service Manual provides clear, step-by-step instructions for maintaining, diagnosing, and repairing Komatsu equipment. It includes detailed procedures, diagrams, specifications, and troubleshooting guides to help technicians perform accurate and efficient service work.

CONTENTS:

00 Index and Foreword
Index
Abbreviation List
Foreword, Safety, Basic Information
01 Specifications
Table of Contents
Abbreviation List
Specifications
10 Structure and Function
Table of Contents
Abbreviation List
Boot-up System
Engine System
Cooling System
Control System
Hydraulic System
Work Equipment System
Swing System
Travel System
Undercarriage and Frame
Work Equipment
CAB Related Parts
20 Standard Value Table
Table of Contents
Abbreviation List
Standard Value Table for Engine
Standard Value Table for Machine
30 Testing and Adjusting
Table of Contents
Precautions Before Work
Abbreviation List
Related Information on Testing and Adjusting
Engine and Cooling System
Power Train
Undercarriage and Frame
Hydraulic System
CAB Related Parts
Electrical System
Pm Clinic
40 Troubleshooting
Table of Contents
Precautions Before Work
Abbreviation List
Related Information to Troubleshooting
Troubleshooting by Failure Code (Display of Code)
Troubleshooting of Electrical System (E-Mode)
Troubleshooting for Hydraulic and Mechanical Systems (H Mode)
Troubleshooting of Engine (S-Mode)
50 Disassembly and Assembly
Table of Contents
Precautions Before Work
Abbreviation List
Related Information on Disassembly and Assembly
Engine and Cooling System
Power Train
Undercarriage and Frame
Hydraulic System
Work Equipment
CAB Related Parts
Electrical System
60 Maintenance Standard
Table of Contents
Abbreviation List
Engine and Cooling System
Power Train
Undercarriage and Frame
Hydraulic System
Work Equipment
80 Appendix
Table of Contents
Precautions Before Work
Abbreviation List
Air Conditioner System
Component Parts of Air Conditioner System
Information Shown in Troubleshooting Table
A-1 Troubleshooting for Power Supply System (Air Conditioner Does Not Operate)
A-2 Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal)
A-3 Troubleshooting for Temperature Control Function
A-4 Troubleshooting for Air Conditioner Compressor and Cooling System (Electrical System)
A-5 Troubleshooting for Air Conditioner Compressor and Cooling System (Mechanical Systems)
A-6 Troubleshooting for Hot Water Circuit System
A-7 Unusual Noise is Heard from Air Conditioner Related Parts
A-8 Water Leaks from Air Conditioner Related Parts
A-9 Troubleshooting for Fresh/Recirc Air Changeover
Precautions for Disconnection and Connection of Air Conditioner Piping
Handle Compressor Oil
90 Circuit Diagrams
Table of Contents
Abbreviation List
Hydraulic Circuit Diagram
Electrical Circuit Diagram

Format: PDF (Printable Document)
File Language: English
File Pages: 1276
File Size: 32.07 MB
Brand: Komatsu
Model: PC45MR-5, PC55MR-5 Compact Hydraulic Excavator
Book No: SEN06574-17
Serial No: 30001, 20001 and up