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00 Index and foreword
Index
Measuring compression pressure ........................................................................................ 30-19
Testing blowby pressure ..................................................................................................... 30-22
Testing engine oil pressure ................................................................................................. 30-23
Testing EGR valve and KVGT driving oil pressure ................................................................. 30-24
Measuring fuel pressure ..................................................................................................... 30-26
Testing fuel return rate and leakage ..................................................................................... 30-27
Bleeding air from fuel system .............................................................................................. 30-30
Testing fuel circuit for leakage ............................................................................................. 30-32
Handling cylinder cutout mode operation.............................................................................. 30-33
Handling no-injection cranking operation.............................................................................. 30-34
Replacing belt for alternator and air conditioner compressor, adjusting belt tension .................. 30-35
Adjusting fuel control dial and decelerator pedal ................................................................... 30-36
Procedures for cleaning fuel doser....................................................................................... 30-38
Writing compensation values at replacement of injector and engine controller ......................... 30-41
Power train............................................................................................................................... 30-45
Testing power train oil pressure ........................................................................................... 30-45
Adjusting transmission output shaft speed sensor (replacement procedure) ............................ 30-51
Simple test procedure for brake performance ....................................................................... 30-52
Adjusting brake pedal ......................................................................................................... 30-53
Adjusting parking brake lever .............................................................................................. 30-55
Retrieval of disabled machine by using brake release device ................................................. 30-57
Undercarriage and frame........................................................................................................... 30-60
Adjusting idler clearance..................................................................................................... 30-60
Testing and adjusting track tension ...................................................................................... 30-62
Hydraulic system ...................................................................................................................... 30-63
Releasing remaining pressure in work equipment cylinder ..................................................... 30-63
Testing and adjusting work equipment and HSS oil pressures ................................................ 30-64
Bleeding air from work equipment and HSS pump................................................................. 30-68
Testing source pressure of control circuit.............................................................................. 30-69
Testing work equipment lock solenoid valve output pressure.................................................. 30-70
Isolating the parts causing hydraulic drift in blade and ripper .................................................. 30-71
Checking fan speed ........................................................................................................... 30-72
Testing fan circuit oil pressure ............................................................................................. 30-73
Bleeding air from fan pump ................................................................................................. 30-75
Testing internal oil leakage of work equipment cylinder .......................................................... 30-76
Bleeding air from work equipment cylinders.......................................................................... 30-77
Emergency operating method when work equipment has trouble ........................................... 30-78
Testing ripper pin puller solenoid valve output pressure ......................................................... 30-80
Work equipment ....................................................................................................................... 30-81
Adjusting work equipment lock lever .................................................................................... 30-81
Adjusting blade .................................................................................................................. 30-83
Cab and its attachments ............................................................................................................ 30-85
Adjusting operator's cab ..................................................................................................... 30-85
Electrical system ...................................................................................................................... 30-88
Special functions of machine monitor ................................................................................... 30-88
Angle adjustment of rear view camera ............................................................................... 30-167
Handling voltage circuit of engine controller........................................................................ 30-168
Handling battery disconnect switch .................................................................................... 30-169
Testing diodes ................................................................................................................. 30-170
Pm clinic ................................................................................................................................ 30-171
Pm Clinic service ............................................................................................................. 30-171
Check sheet .................................................................................................................... 30-176
40 Troubleshooting............................................................................................................................ 40-1
Table of contents ........................................................................................................................ 40-2
Related information on troubleshooting....................................................................................... 40-11
Troubleshooting points ....................................................................................................... 40-11
Sequence of events in troubleshooting................................................................................. 40-13
Checks before troubleshooting ............................................................................................ 40-15
Inspection procedure before troubleshooting ........................................................................ 40-17
00-4
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D155AX-7
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