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00 Index and foreword
Index
S-17 Coolant temperature rises too high (overheating) ........................................................ 40-767
S-18 Unusual noise is heard ............................................................................................. 40-768
S-19 Vibration is excessive ............................................................................................... 40-769
S-20 Air cannot be bled from fuel circuit ............................................................................. 40-770
Troubleshooting for hybrid systems (Y mode)............................................................................ 40-771
Precautions related to hybrid equipment ............................................................................ 40-771
Y-1 Hybrid monitor does not go out .................................................................................... 40-772
Y-2 Machine does not swing.............................................................................................. 40-773
Y-3 Swing acceleration or swing speed is low ..................................................................... 40-776
Y-4 Upper structure overruns excessively when it stops swinging ......................................... 40-777
Y-5 Shock is large when upper structure stops swinging ...................................................... 40-778
Y-6 Large unusual noise is heard when upper structure stops swinging ................................ 40-779
Y-7 Swing drift on a slope is large ...................................................................................... 40-780
Y-8 Electric swing motor temperature increases abnormally................................................. 40-781
Y-9 Motor-generator temperature increases abnormally....................................................... 40-782
Y-10 Inverter temperature increases abnormally ................................................................. 40-783
Y-11 Capacitor temperature increases abnormally .............................................................. 40-784
50 Disassembly and assembly ........................................................................................................... 50-1
Table of contents ........................................................................................................................ 50-2
Related information on disassembly and assembly ........................................................................ 50-4
How to read this manual ....................................................................................................... 50-4
Precautions related to hybrid equipment ................................................................................ 50-6
Coating materials list ............................................................................................................ 50-7
Special tools list ................................................................................................................. 50-11
Sketches of special tools .................................................................................................... 50-16
Engine and cooling system ........................................................................................................ 50-23
Removal and installation of supply pump assembly............................................................... 50-23
Removal and installation of injector assembly....................................................................... 50-27
Removal and installation of cylinder head assembly.............................................................. 50-33
Removal and installation of radiator assembly ...................................................................... 50-51
Removal and installation of hydraulic oil cooler assembly ...................................................... 50-54
Removal and installation of aftercooler assembly .................................................................. 50-57
Removal and installation of engine, motor-generator, and main pump assembly ...................... 50-59
Removal and installation of fan belt...................................................................................... 50-71
Removal and installation of starting motor ............................................................................ 50-74
Removal and installation of engine front oil seal .................................................................... 50-76
Removal and installation of engine rear oil seal..................................................................... 50-79
Removal and installation of fuel cooler assembly .................................................................. 50-82
Removal and installation of fuel tank assembly ..................................................................... 50-84
Removal and installation of engine hood assembly ............................................................... 50-86
Removal and installation of KDOC assembly ........................................................................ 50-89
Removal and installation of KCCV assembly ........................................................................ 50-90
Removal and installation of air cleaner assembly .................................................................. 50-96
Removal and installation of EGR (Exhaust Gas Recirculation) valve assembly........................ 50-97
Removal and installation of EGR (Exhaust Gas Recirculation) cooler assembly....................... 50-99
Hybrid system ........................................................................................................................ 50-102
Draining coolant, refilling with coolant, and bleeding air for hybrid system ............................. 50-102
Removal and installation of hybrid radiator assembly .......................................................... 50-106
Removal and installation of hybrid water pump assembly .................................................... 50-109
Removal and installation of inverter assembly .....................................................................50-111
Removal and installation of inverter and capacitor assembly ................................................ 50-114
Procedure for draining and refilling generator lubricating oil ................................................. 50-119
Removal and installation of tandem pump assembly ........................................................... 50-121
Removal and installation of motor-generator and housing assembly ..................................... 50-124
Removal and installation of electric swing motor assembly .................................................. 50-131
Power train system ................................................................................................................. 50-136
Removal and installation of travel motor and final drive assembly ......................................... 50-136
Disassembly and assembly of final drive ............................................................................ 50-137
Removal and installation of swing motor and swing machinery assembly .............................. 50-146
00-12
HB215LC-2
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