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Table of Contents
Undercarriage and frame ........................................................................................................ 60- 16
Track frame and idler cushion.............................................................................................. 60- 16
Idler ...................................................................................................................................... 60- 18
Track roller ........................................................................................................................... 60- 22
Carrier roller ......................................................................................................................... 60- 25
Track shoe ........................................................................................................................... 60- 28
Hydraulic system..................................................................................................................... 60- 38
Hydraulic pump .................................................................................................................... 60- 38
Control valve ........................................................................................................................ 60- 48
Swing motor ......................................................................................................................... 60- 54
Travel motor......................................................................................................................... 60- 55
PPC valve ............................................................................................................................ 60- 58
Boom drift prevention valve ................................................................................................. 60- 65
Regeneration valve (boom, arm) ......................................................................................... 60- 66
Center swivel joint................................................................................................................ 60- 67
Work equipment...................................................................................................................... 60- 68
Work equipment................................................................................................................... 60- 68
Work equipment dimension ................................................................................................. 60- 72
Work equipment cylinder ..................................................................................................... 60- 78
80 Appendix
Air conditioner ......................................................................................................................... 80-
Precautions for refrigerant ................................................................................................... 80-
Air conditioner component ................................................................................................... 80-
Configuration and function of refrigeration cycle.................................................................. 80-
Outline of refrigeration cycle ................................................................................................ 80-
Air conditioner unit ............................................................................................................... 80- 10
Air conditioner controller ...................................................................................................... 80- 15
Compressor ......................................................................................................................... 80- 16
Condenser ........................................................................................................................... 80- 17
Receiver drier....................................................................................................................... 80- 18
Procedure for testing and troubleshooting ........................................................................... 80- 20
Circuit diagram and arrangement of connector pins ............................................................ 80- 22
System diagram ................................................................................................................... 80- 24
Detail of air conditioner unit ................................................................................................. 80- 26
Parts and connectors layout ................................................................................................ 80- 28
Testing air leakage (duct) .................................................................................................... 80- 31
Testing with self-diagnosis function ..................................................................................... 80- 32
Testing temperature control ................................................................................................. 80- 35
Testing vent (mode) changeover ......................................................................................... 80- 37
Testing FRESH/RECIRC air changeover ............................................................................ 80- 40
Testing inner sensor ............................................................................................................ 80- 42
Testing evaporator temperature sensor............................................................................... 80- 43
Testing sunlight sensor ........................................................................................................ 80- 45
Testing (dual) pressure switch for refrigerant ...................................................................... 80- 46
Testing relays....................................................................................................................... 80- 47
Troubleshooting chart 1 ....................................................................................................... 80- 48
Troubleshooting chart 2 ....................................................................................................... 80- 50
Information in troubleshooting table..................................................................................... 80- 52
Troubleshooting for power supply and CAN communication system (Air conditioner does not operate)
............................................................................................................................................. 80- 54
Troubleshooting for compressor and refrigerant system (Air is not cooled) ........................ 80- 59
Troubleshooting for blower motor system (No air comes out or air flow is abnormal) ......... 80- 63
Troubleshooting for temperature control.............................................................................. 80- 67
00-10
3
3
4
6
7
PC600, 650, 700-8E0
(04)
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