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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- 20
Carrier roller ......................................................................................................................... 60- 21
Track shoe ........................................................................................................................... 60- 22
Hydraulic system..................................................................................................................... 60- 28
Main pump ........................................................................................................................... 60- 28
Control valve ........................................................................................................................ 60- 32
Travel motor......................................................................................................................... 60- 41
PPC valve ............................................................................................................................ 60- 44
Solenoid valve...................................................................................................................... 60- 54
Attachment circuit selector valve ......................................................................................... 60- 55
Center swivel joint................................................................................................................ 60- 56
Work equipment...................................................................................................................... 60- 58
Work equipment................................................................................................................... 60- 58
Dimension of work equipment.............................................................................................. 60- 60
Work equipment cylinder ..................................................................................................... 60- 64
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 and Modulator ................................................................................................... 80- 17
Procedure for testing and troubleshooting ........................................................................... 80- 18
Circuit diagram and arrangement of connector pins ............................................................ 80- 20
System diagram ................................................................................................................... 80- 22
Detail of air conditioner unit ................................................................................................. 80- 24
Parts and connectors layout ................................................................................................ 80- 26
Testing air leakage (duct) .................................................................................................... 80- 30
Testing with self-diagnosis function ..................................................................................... 80- 31
Testing temperature control ................................................................................................. 80- 34
Testing vent (mode) changeover ......................................................................................... 80- 36
Testing FRESH/RECIRC air changeover ............................................................................ 80- 39
Testing inner sensor ............................................................................................................ 80- 41
Testing evaporator temperature sensor............................................................................... 80- 42
Testing sunlight sensor ........................................................................................................ 80- 44
Testing (dual) pressure switch for refrigerant ...................................................................... 80- 45
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- 53
Troubleshooting for compressor and refrigerant system (Air is not cooled) ........................ 80- 57
Troubleshooting for blower motor system (No air comes out or air flow is abnormal) ......... 80- 60
Troubleshooting for temperature control.............................................................................. 80- 63
Troubleshooting for vent (mode) changeover ...................................................................... 80- 66
Troubleshooting for FRESH/RECIRC air changeover ......................................................... 80- 68
00-3-9
1 2
16
16
18
20
21
22
28
28
32
41
44
54
55
56
58
58
60
64
3
3
4
6
7
HB205-1, HB215LC-1
(03)
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