Komatsu Excavator PC220LC-12 PC220LCi-12 Shop Manual SEN07005-02

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Komatsu Hydraulic Excavator PC220LC-12 PC220LCi-12 Shop Manual SEN07005-02
Size: 122.89 MB
Format: PDF
Language: English
Brand: Komatsu
Type of Machine: Hydraulic Excavator
Type of Manual: Shop Manual, Hydraulic and Electric Diagrams
Model: Komatsu PC220LC-12 PC220LCi-12 Hydraulic Excavator
Serial Number:
PC220LC: 800001 and up
PC220LCi: 900001 and up
Part Number: SEN07005-02
Publication Date: 2025
Number of Pages: 5392 Pages

Contents:
00 Index and Foreword

Index​

Abbreviation List​

Foreword, Safety, Basic Information​

01 Specifications

Table of Contents​

Specifications​

10 Structure and Function

Table of Contents​

Urea SCR System​

Boot-up System​

Engine System​

Cooling System​

Control System​

Hydraulic System​

Work Equipment System​

ICT System​

Swing System​

Travel System​

Undercarriage and Frame​

Work Equipment​

CAB Related Parts​

20 Standard Value Table

Table of Contents​

Standard Value Table for Engine​

Standard Value Table for Machine​

30 Testing and Adjusting

Table of Contents​

Precautions Before Work​

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​

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​

Related Information on Disassembly and Assembly​

Prepare​

Engine and Cooling System​

Power Train​

Undercarriage and Frame​

Hydraulic System​

Work Equipment​

CAB Related Parts​

Electrical System​

60 Maintenance Standard

Table of Contents​

Explanation of Terms for Maintenance Standard​

Engine and Cooling System​

Power Train​

Undercarriage and Frame​

Hydraulic System​

Work Equipment​

CAB Related Parts​

80 Appendix

Table of Contents​

Precautions Before Work​

Air Conditioner System​

Component Parts of Air Conditioner System​

Explanation of Procedure for Test of and Troubleshooting of Air Conditioner​

Circuit Diagram and Configuration of Connector Pins of Air Conditioner​

Input and Output Signals of Air Conditioner Controller​

Locations of Air Conditioner Parts and Layout of Connectors​

Examine Air Leakage (Duct)​

Examine Air Conditioner with Self-Diagnosis Function​

How to See Electrical System Abnormality Record by SDT​

Examine Vent (Mode) Changeover​

Examine Fresh/Recirc Air Changeover​

Examine Sunlight Sensor​

Examine Air Conditioner High Pressure and Low Pressure Sensor​

Examine Relay​

Air Conditioner Troubleshooting Chart 1​

Air Conditioner Troubleshooting Chart 2​

Information Shown in Troubleshooting Table​

Failure Code [879AKA]​

Failure Code [879AKB]​

Failure Code [879BKA]​

Failure Code [879BKB]​

Failure Code [879CKA]​

Failure Code [879CKB]​

Failure Code [879DKZ]​

Failure Code [879EMC]​

Failure Code [879FMC]​

Failure Code [879GKX]​

Troubleshooting for Power Supply System (Air Conditioner Does Not Operate)​

Troubleshooting for Compressor and Refrigerant System (Air is Not Cooled)​

Troubleshooting for Blower Motor System (No Air Comes Out or Air Flow is Abnormal)​

Troubleshooting for Fresh/Recirc Air Changeover​

Troubleshooting by Gauge Pressure​

Connect Service Tool​

Precautions for Disconnection and Connection of Air Conditioner Piping​

Handle Compressor Oil​

How to Replace Desiccant​

Payload​

Structure and Operation of Payload​

Examine Payload Accuracy​

90 Circuit Diagrams

Table of Contents​

How to Read the Codes for Electric Cable​

Hydraulic Circuit Diagram​

Electrical Circuit Diagram​

Index