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Brake ECMV ..................................................................................................................... 60-43
Brake solenoid valve .......................................................................................................... 60-44
Sudden stop prevention valve ............................................................................................. 60-45
Final drive ......................................................................................................................... 60-46
Sprocket............................................................................................................................ 60-49
Full-scale drawing of sprocket tooth profile ........................................................................... 60-50
Undercarriage and frame........................................................................................................... 60-51
Main frame ........................................................................................................................ 60-51
Suspension ....................................................................................................................... 60-53
Track frame and idler cushion ............................................................................................. 60-55
Idler .................................................................................................................................. 60-57
Track roller ........................................................................................................................ 60-59
Carrier roller ...................................................................................................................... 60-61
Track shoe ........................................................................................................................ 60-62
Hydraulic system ...................................................................................................................... 60-66
Hydraulic tank.................................................................................................................... 60-66
Scavenging pump .............................................................................................................. 60-67
Steering lubrication pump and power train pump................................................................... 60-68
Work equipment and HSS pump ......................................................................................... 60-70
PC-EPC valve ................................................................................................................... 60-72
HSS motor ........................................................................................................................ 60-73
Control valve ..................................................................................................................... 60-76
Quick drop valve ................................................................................................................ 60-89
Self-pressure reducing valve ............................................................................................... 60-91
Work equipment ....................................................................................................................... 60-93
Cylinder stay...................................................................................................................... 60-93
Blade ................................................................................................................................ 60-94
Cutting edge and end bit ..................................................................................................... 60-96
Ripper ............................................................................................................................... 60-97
Blade lift cylinder.............................................................................................................. 60-101
Blade tilt cylinder.............................................................................................................. 60-102
Ripper lift cylinder............................................................................................................. 60-103
Ripper tilt cylinder............................................................................................................. 60-104
Cab and its attachments .......................................................................................................... 60-105
Cab mount ...................................................................................................................... 60-105
80 Appendix...................................................................................................................................... 80-1
Table of contents ........................................................................................................................ 80-2
Air conditioner components ......................................................................................................... 80-3
Precautions for refrigerant..................................................................................................... 80-3
Air conditioner component .................................................................................................... 80-4
Configuration and function of refrigeration cycle...................................................................... 80-6
Outline of refrigeration cycle.................................................................................................. 80-7
Air conditioner unit ............................................................................................................... 80-9
Air conditioner controller ..................................................................................................... 80-16
Compressor....................................................................................................................... 80-17
Condenser ........................................................................................................................ 80-18
Receiver drier .................................................................................................................... 80-19
Sunlight sensor .................................................................................................................. 80-20
Outer temperature sensor (outside air temperature sensor) ................................................... 80-21
Procedure for testing and troubleshooting ............................................................................ 80-22
Circuit diagram and arrangement of connector pins............................................................... 80-24
System diagram................................................................................................................. 80-26
Parts and connectors layout................................................................................................ 80-29
Testing air leakage (duct) .................................................................................................... 80-37
Testing with self-diagnosis function ...................................................................................... 80-40
Testing vent (mode) changeover.......................................................................................... 80-43
Testing FRESH/RECIRC air changeover.............................................................................. 80-44
Testing sunlight sensor ....................................................................................................... 80-45
Testing (dual) pressure switch for refrigerant......................................................................... 80-46
D155AX-7
00 Index and foreword
Index
00-15
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