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Limited slip differential....................................................................................................................... 10-69
Final drive.......................................................................................................................................... 10-72
Steering system .................................................................................................................................... 10-75
Steering piping diagram .................................................................................................................... 10-75
Orbitrol valve ..................................................................................................................................... 10-76
Steering column ................................................................................................................................ 10-84
Priority valve...................................................................................................................................... 10-85
Emergency steering valve ................................................................................................................. 10-88
Brake system ........................................................................................................................................ 10-91
Brake piping diagram ........................................................................................................................ 10-91
Brake valve........................................................................................................................................ 10-92
Charge valve ..................................................................................................................................... 10-96
Accumulator (for brake)................................................................................................................... 10-100
Slack adjuster.................................................................................................................................. 10-101
Brake ............................................................................................................................................... 10-103
Parking brake control ...................................................................................................................... 10-106
Parking brake .................................................................................................................................. 10-107
Parking brake cylinder..................................................................................................................... 10-108
Parking brake solenoid valve .......................................................................................................... 10-109
Inching valve ................................................................................................................................... 10-111
Undercarriage and frame .................................................................................................................... 10-112
Axle mount and center hinge pin..................................................................................................... 10-112
Hydraulic system................................................................................................................................. 10-114
Hydraulic component layout ............................................................................................................ 10-114
Work equipment control lever linkage ............................................................................................. 10-116
Hydraulic tank.................................................................................................................................. 10-117
Accumulator (for PPC circuit) .......................................................................................................... 10-119
Work equipment control valve ......................................................................................................... 10-120
PPC valve........................................................................................................................................ 10-133
Attachment EPC valve .................................................................................................................... 10-139
Work equipment lock solenoid valve ............................................................................................... 10-140
ECSS valve ..................................................................................................................................... 10-141
Accumulator (for ECSS) .................................................................................................................. 10-143
2-way restrictor valve ...................................................................................................................... 10-144
Cushion valve.................................................................................................................................. 10-145
Accumulator (for oil cooler circuit) ................................................................................................... 10-146
Quadruple gear pump ..................................................................................................................... 10-147
Quick coupler solenoid valve........................................................................................................... 10-148
Work equipment.................................................................................................................................. 10-149
Work equipment linkage.................................................................................................................. 10-149
Bucket ............................................................................................................................................. 10-151
Bucket positioner and boom kick-out .............................................................................................. 10-152
Cab and its attachments ..................................................................................................................... 10-158
Cab.................................................................................................................................................. 10-158
Electrical system ................................................................................................................................. 10-159
Machine monitor system ................................................................................................................. 10-159
Machine monitor.............................................................................................................................. 10-164
Electrical system (HST controller system)....................................................................................... 10-186
System component parts................................................................................................................. 10-202
HST controller ................................................................................................................................. 10-208
ECSS............................................................................................................................................... 10-212
KOMTRAX system .......................................................................................................................... 10-214
Engine starting circuit ...................................................................................................................... 10-217
Engine stopping circuit .................................................................................................................... 10-219
Preheating system........................................................................................................................... 10-220
Automatic preheating system .......................................................................................................... 10-221
WA200-7
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00 Index and foreword
Index
00-3
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