Komatsu 140E-6 Series Engine Shop Manual SEN05641-03 – PDF DOWNLOAD

Description

Komatsu 140E-6 Series Engine Shop Manual SEN05641-03 – PDF DOWNLOAD

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DESCRIPTION:

Komatsu 140E-6 Series Engine Shop Manual SEN05641-03 – PDF DOWNLOAD

How to read the shop manual (ALL-0320-010-A-03-A)
• Some attachments and optional parts described in this shop manual may not be arranged for certain
areas. Contact your Komatsu distributor if one or some of them are required.
• Materials and specifications are subject to change without notice.
• The shop manuals are available for “Machine part” and “Engine part”. For the engine, see the shop
manual for the same model of the engine as the one which is mounted on the machine.
Composition of shop manual
• This shop manual describes the technical information required for the services performed in a workshop.
The shop manual is divided into the following chapters for the convenience of use.
00. Index and foreword
• This section includes the index, foreword, safety and basic information.
01. Specification
• This section explains the specifications of the machine.
10. Structure and function
• This section explains the structure and function of the machine. The section of “Structure and function”
serves not only to give an understanding for the structure of each component, but also serves as
reference material for troubleshooting.
20. Standard value table
• The standard values for a new machine and trouble shooting are described. This standard value table is
used for testing and adjusting, and determining a failure at troubleshooting.
50. Disassembly and assembly
• This section explains the procedures for removing, installing, disassembling, and assembling each part or
component and the special tools for the works as well as precautions for doing them safely. In addition,
tightening torque, and quantity and weight of coating material, oil, grease, and coolant required for the
works are also explained.
60. Maintenance standard
• This section describes the maintenance standard values for each component. This section gives the
criterion values for each component and required remedy at disassembly or maintenance.

TABLE OF CONTENTS:

Komatsu 140E-6 Series Engine Shop Manual SEN05641-03 – PDF DOWNLOAD

Cover 1
00 Index and foreword 3
Index 4
Foreword, safety and general information 7
Important safety notice 7
How to read the shop manual 14
Explanation of terms for maintenance standard 16
Handling equipment of fuel system devices 18
Handling of intake system parts 19
Handling of hydraulic equipment 20
Method of disconnecting and connecting of push-pull type coupler 22
Handling of electrical equipment 25
How to read electric wire code 33
Precautions when performing operation 36
Standard tightening torque table 41
List of abbreviation 47
Conversion table 52
01 Specification 57
Table of contents 58
General information 59
Exhaust gas regulation 59
Specifications 62
Machine model 62
Specifications 63
General view 66
Weight table 79
Engine performance curve 80
10 Structure and function 85
Table of contents 86
Components layout 88
Components layout drawing 88
Intake and exhaust system parts 91
Intake and exhaust system layout drawing 91
Intake and exhaust system circuit diagram 93
Air cleaner 95
KVGT 96
Aftercooler 102
EGR system piping drawing 103
EGR system circuit diagram 105
EGR valve 106
EGR cooler 108
Mixing connector 110
KCCV layout drawing 111
KCCV ventilator 113
KDPF 117
Engine main body parts 121
Cylinder head 121
Cylinder block 123
Main moving parts 125
Timing gear 128
Front cover 129
Valve system 130
Flywheel and flywheel housing 132
Lubrication system 133
Lubrication system parts layout drawing 133
Lubrication system diagram 134
Oil pump 135
Boost oil pump 137
Oil filter 139
Oil cooler 140
Oil cooler thermo-valve 142
Oil pan 143
Fuel system 144
Fuel system parts layout drawing 144
Fuel system circuit diagram 146
Outline of CRI system 149
Fuel system 149
Various controls 150
Structure and operation of CRI system 152
Structure and operation of component parts 153
Fuel dozing 163
Dozing piping drawing 163
Pre-filter 166
Main filter 167
Cooling system 168
Cooling system parts layout drawing 168
Cooling system circuit diagram 169
Water pump 170
Thermostat 172
Electrical equipment 174
Alternator 174
Alternator mounting 177
Starting motor 178
Fuel feed pump 180
Fuel feed pump switch 181
Engine wiring harness 182
Engine controller 184
Sensor 190
20 Standard value tables 203
Table of contents 204
Standard service value table 205
Standard value table for engine 205
Running-in standard and performance test standard 211
50 Disassembly and assembly 215
Table of contents 216
Related information on disassembly and assembly 217
How to read this manual 217
Coating materials list 219
Special tools list 223
Sketches of special tools 225
Disassembly and assembly 228
General disassembly of engine 228
General assembly of engine 243
Removal and installation of supply pump 275
Procedures for replacing engine front oil seal 279
Procedures for replacing engine rear oil seal 282
60 Maintenance standard 287
Table of contents 288
Intake and exhaust system parts 289
KVGT 289
Engine main body parts 290
Cylinder head 290
Cylinder block 291
Cylinder liner 293
Crankshaft 294
Cam follower and push rod 295
Piston 296
Connecting rod 298
Timing gear 300
Camshaft 302
Valve and valve guide 303
Rocker arm 305
Crosshead and guide 306
Flywheel 307
Cooling system 309
Oil cooler 309
Water pump 311

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