Komatsu WA430-6 Shop Manual page 6

SEN00832-16
Table of contents
00 Index and foreword
Index
Composition of shop manual ...................................................................................................
Table of contents......................................................................................................................
Foreword and general information
Safety notice ............................................................................................................................
How to read the shop manual..................................................................................................
Explanation of terms for maintenance standard ......................................................................
Handling of electric equipment and hydraulic component ....................................................... 11
Handling of connectors newly used for engines ...................................................................... 20
How to read electric wire code................................................................................................. 23
Precautions when carrying out operation ................................................................................ 26
Method of disassembling and connecting push-pull type coupler ........................................... 29
Standard tightening torque table.............................................................................................. 32
Conversion table...................................................................................................................... 36
01 Specification
Specification and technical data
Specification dimension drawing..............................................................................................
Specifications...........................................................................................................................
Weight table .............................................................................................................................
Table of fuel, coolant and lubricants ........................................................................................ 10
10 Structure, function and maintenance standard
Engine and cooling system
Engine mount and transmission mount ...................................................................................
Cooling system ........................................................................................................................
Cooling fan pump.....................................................................................................................
Cooling fan motor .................................................................................................................... 12
Power train
Power train...............................................................................................................................
Power train system diagram ....................................................................................................
Drive shaft................................................................................................................................
Power train piping diagram ......................................................................................................
Torque converter......................................................................................................................
Transmission............................................................................................................................ 16
Flow control valve .................................................................................................................... 33
Transmission control valve ...................................................................................................... 36
ECMV ...................................................................................................................................... 40
Main relief valve and torque converter relief valve .................................................................. 46
Axle.......................................................................................................................................... 48
Differential................................................................................................................................ 50
Limited slip differential ............................................................................................................. 56
Final drive ................................................................................................................................ 62
Steering system
Steering piping diagram ...........................................................................................................
Steering column .......................................................................................................................
Steering pump..........................................................................................................................
Steering valve .......................................................................................................................... 17
Orbit-roll valve.......................................................................................................................... 32
Stop valve ................................................................................................................................ 36
Steering relief valve ................................................................................................................. 37
Steering cylinder ...................................................................................................................... 38
Emergency steering motor....................................................................................................... 40
Emergency steering pump....................................................................................................... 41
4
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00 Index and foreword
1
SEN00832-16
2
4
SEN00833-04
2
7
9
SEN00834-03
3
4
8
SEN01363-01
2
3
4
SEN01364-03
3
4
6
7
8
SEN01365-02
3
4
5
WA430-6