VENBM28500
WHEEL LOADER WA270 -7
SERIAL NUMBERS 80001 and up
H01051 and up
,
,SHOP MANUAL
WHEEL LOADER
WA270-7
Model Serial Number
WA270-7 80001 and up
H01051 and up
00 Index and foreword
1 00 Index and foreword
WA270-7 00-1
, 00 Index and foreword
Index
Index (ALL-0310-001-A-00-A)
00 Index and foreword ....................................................................................................................... 00-1
Index ......................................................................................................................................... 00-2
Foreword, safety and general information ................................................................................... 00-17
Important safety notice ....................................................................................................... 00-17
How to read the shop manual.............................................................................................. 00-24
Explanation of terms for maintenance standard .................................................................... 00-26
Handling equipment of fuel system devices .......................................................................... 00-28
Handling of intake system parts........................................................................................... 00-29
Handling of hydraulic equipment.......................................................................................... 00-30
Method of disconnecting and connecting of push-pull type coupler ......................................... 00-32
Handling of electrical equipment.......................................................................................... 00-35
How to read electric wire code............................................................................................. 00-43
Precautions when performing operation ............................................................................... 00-46
Practical use of KOMTRAX ................................................................................................. 00-51
Standard tightening torque table.......................................................................................... 00-52
List of abbreviation ............................................................................................................. 00-58
Conversion table ................................................................................................................ 00-63
01 Specification................................................................................................................................. 01-1
Table of contents ........................................................................................................................ 01-2
Specifications............................................................................................................................. 01-3
Specification drawing ........................................................................................................... 01-3
Specifications ...................................................................................................................... 01-7
Weight table ...................................................................................................................... 01-17
Table of fuel, coolant, and lubricants .................................................................................... 01-21
10 Structure and function ................................................................................................................... 10-1
Table of contents ........................................................................................................................ 10-2
Engine and cooling system .......................................................................................................... 10-4
Engine related parts ............................................................................................................. 10-4
KVGT.................................................................................................................................. 10-6
EGR system piping drawing ................................................................................................ 10-13
EGR system circuit diagram ................................................................................................ 10-15
EGR valve......................................................................................................................... 10-17
EGR cooler........................................................................................................................ 10-19
KCCV layout drawing ......................................................................................................... 10-20
KCCV ventilator ................................................................................................................. 10-22
KDPF................................................................................................................................ 10-24
Cooling system .................................................................................................................. 10-28
Cooling fan motor............................................................................................................... 10-30
Power train............................................................................................................................... 10-40
Power train system............................................................................................................. 10-40
Layout of power train parts.................................................................................................. 10-42
Damper ............................................................................................................................. 10-43
HST pump ......................................................................................................................... 10-44
HST motor1 ....................................................................................................................... 10-57
HST motor2 ....................................................................................................................... 10-59
Transfer ............................................................................................................................ 10-64
Clutch solenoid valve ......................................................................................................... 10-71
Drive shaft ......................................................................................................................... 10-73
Axle .................................................................................................................................. 10-74
Differential ......................................................................................................................... 10-76
Torque proportional differential ............................................................................................ 10-80
Limited slip differential ........................................................................................................ 10-82
Final drive ......................................................................................................................... 10-87
Steering system........................................................................................................................ 10-90
Layout of steering devices .................................................................................................. 10-90
Steering column................................................................................................................. 10-91
Priority valve...................................................................................................................... 10-92
Cushion valve .................................................................................................................... 10-96
00-2 WA270-7
WHEEL LOADER WA270 -7
SERIAL NUMBERS 80001 and up
H01051 and up
,
,SHOP MANUAL
WHEEL LOADER
WA270-7
Model Serial Number
WA270-7 80001 and up
H01051 and up
00 Index and foreword
1 00 Index and foreword
WA270-7 00-1
, 00 Index and foreword
Index
Index (ALL-0310-001-A-00-A)
00 Index and foreword ....................................................................................................................... 00-1
Index ......................................................................................................................................... 00-2
Foreword, safety and general information ................................................................................... 00-17
Important safety notice ....................................................................................................... 00-17
How to read the shop manual.............................................................................................. 00-24
Explanation of terms for maintenance standard .................................................................... 00-26
Handling equipment of fuel system devices .......................................................................... 00-28
Handling of intake system parts........................................................................................... 00-29
Handling of hydraulic equipment.......................................................................................... 00-30
Method of disconnecting and connecting of push-pull type coupler ......................................... 00-32
Handling of electrical equipment.......................................................................................... 00-35
How to read electric wire code............................................................................................. 00-43
Precautions when performing operation ............................................................................... 00-46
Practical use of KOMTRAX ................................................................................................. 00-51
Standard tightening torque table.......................................................................................... 00-52
List of abbreviation ............................................................................................................. 00-58
Conversion table ................................................................................................................ 00-63
01 Specification................................................................................................................................. 01-1
Table of contents ........................................................................................................................ 01-2
Specifications............................................................................................................................. 01-3
Specification drawing ........................................................................................................... 01-3
Specifications ...................................................................................................................... 01-7
Weight table ...................................................................................................................... 01-17
Table of fuel, coolant, and lubricants .................................................................................... 01-21
10 Structure and function ................................................................................................................... 10-1
Table of contents ........................................................................................................................ 10-2
Engine and cooling system .......................................................................................................... 10-4
Engine related parts ............................................................................................................. 10-4
KVGT.................................................................................................................................. 10-6
EGR system piping drawing ................................................................................................ 10-13
EGR system circuit diagram ................................................................................................ 10-15
EGR valve......................................................................................................................... 10-17
EGR cooler........................................................................................................................ 10-19
KCCV layout drawing ......................................................................................................... 10-20
KCCV ventilator ................................................................................................................. 10-22
KDPF................................................................................................................................ 10-24
Cooling system .................................................................................................................. 10-28
Cooling fan motor............................................................................................................... 10-30
Power train............................................................................................................................... 10-40
Power train system............................................................................................................. 10-40
Layout of power train parts.................................................................................................. 10-42
Damper ............................................................................................................................. 10-43
HST pump ......................................................................................................................... 10-44
HST motor1 ....................................................................................................................... 10-57
HST motor2 ....................................................................................................................... 10-59
Transfer ............................................................................................................................ 10-64
Clutch solenoid valve ......................................................................................................... 10-71
Drive shaft ......................................................................................................................... 10-73
Axle .................................................................................................................................. 10-74
Differential ......................................................................................................................... 10-76
Torque proportional differential ............................................................................................ 10-80
Limited slip differential ........................................................................................................ 10-82
Final drive ......................................................................................................................... 10-87
Steering system........................................................................................................................ 10-90
Layout of steering devices .................................................................................................. 10-90
Steering column................................................................................................................. 10-91
Priority valve...................................................................................................................... 10-92
Cushion valve .................................................................................................................... 10-96
00-2 WA270-7
