Factory Shop Manual For Komatsu Hydraulic Excavator. Manual Contains Illustrations, Instructions, Diagrams For Step By Step Remove And Install, Assembly And Disassembly, Service, Inspection, Repair, Troubleshooting, Tune-Ups.

Format: PDF
Language: English
Pages: 838
Number: CEBM005905 (november 2009)
Bookmarks: Yes
Searchable: Yes
Wiring Diagrams: Yes
Hydraulic Diagrams: Yes

Model

Komatsu Hydraulic Excavator
PC270LC-7L
SN A86001 And Up

Contents

FOREWORD
-GENERAL
Specification Dimension Drawings
Specifications
Weight Table
Fuel, Coolant And Lubricants
-STRUCTURE, FUNCTION AND MAINTENANCE STANDARD
Engine Related Parts
Radiator – Oil Cooler – Aftercooler
Power Train
Final Drive
Swing Machinery
Swing Circle
Track Frame – Recoil Spring
Idler
Carrier Roller
Track Roller
Track Shoe
Triple Grouser Shoe
Hydraulic Equipment Layout Drawing
Hydraulic Tank
Hydraulic Pump
Control Valve
Self Pressure Reducing Valve
Variable Pressure Compensation Valve
CLSS
Swing Motor
Reverse Prevention Valve
Center Swivel Joint
Travel Motor
Travel Junction Valve
Travel PPC Shuttle Valve
Valve Control
Work Equipment – Swing PPC Valve
Travel PPC Valve
Service PPC Valve
Solenoid Valve
PPC Accumulator
Return Oil Filter
Boom Hydraulic Drift Prevention Valve
Lift Check Valve
Attachment Circuit Selector Valve
Hydraulic Cylinders
Work Equipment
Air Conditioner
Engine Control
Electronic Control System
Multi Monitor System
7-Segment Monitor System
Sensors
-STANDARD VALUE TABLES
Standard Value Tables
-TESTING AND ADJUSTING
Service Tools
Engine
Belt Tension – Air Compressor
Engine Control System Failure
Swing Circle Bearings
Track Shoe Tension
Sprocket
Oil Pressure
Work Equipment And Swing PPC Valve
Work Equipment-Hydraulic Drift
Releasing Pressure In Hydraulic Circuit
Oil Leakage
Air Bleeding Of Various Parts
Diode Inspection Procedures
Multi-Monitor Panel
7-Segments Monitor Panel – Special Functions
Electrical System Troubleshooting
PM Tune Up Service
-TROUBLESHOOTING
Points To Remember When Troubleshooting
Sequence Of Events In Troubleshooting
Points To Remember When Carrying Out Maintenance
Checks Before Troubleshooting
Classification And Steps For Troubleshooting
Electrical Circuit Diagram System
Electrical Circuit Diagrams
Connection Table For Connector Pin Numbers
T-Branch Box And T-Branch Table
Before Troubleshooting For Displayed Code
Points To Remember When Troubleshooting System
Codes
-DISASSEMBLY AND ASSEMBLY
Method Of Using Manual
Precautions During Operation
Special Tool List
Sketches Of Special Tools
Starting Motor
Fuel Injection Pump
Engine Front Seal
Engine Rear Seal
Cylinder Head
Connector Repair Procedures
Radiator
Hydraulic Oil Cooler
Engine And Hydraulic Pumps
Final Drive
Swing Motor And Swing Machinery
Carrier Roller
Track Roller
Idler
Recoil Spring
Sprocket
Track Shoe
Swing Circle
Revolving Frame
Center Swivel Joint
Hydraulic Tank
Control Valve
Hydraulic Pump
Hydraulic Pump Input Shaft – Oil Seal
Work Equipment PPC Valve
Travel PPC Valve
Hydraulic Cylinder
Work Equipment
Air Conditioner
Counterweight
Cab
Operators Cab Glass
Front Window
Monitor
Governor Pump Controller
-DIAGRAMS AND DRAWINGS
Electrical
A/C Heater Diagram
Hydraulic