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Komatsu WA200-7 Shop Manual page 13

Wheel loader

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S-2 Engine cranks but no exhaust smoke comes out ..................................................................... 40-659
S-3 Fuel is being injected but engine does not start (misfiring: engine cranks but does not start) . 40-660
S-4 Engine startability is poor.......................................................................................................... 40-661
S-5 Engine does not pick up smoothly ............................................................................................ 40-663
S-6 Engine stops during operation .................................................................................................. 40-665
S-7 Engine runs rough or is unstable .............................................................................................. 40-666
S-8 Engine lacks power................................................................................................................... 40-667
S-9 Exhaust smoke is black ............................................................................................................ 40-669
S-10 Engine oil consumption is excessive ...................................................................................... 40-671
S-11 Oil becomes contaminated quickly ......................................................................................... 40-672
S-12 Fuel consumption is excessive ............................................................................................... 40-673
S-13 Oil is in coolant (or coolant spurts or coolant level goes down).............................................. 40-674
S-14 Oil pressure drops .................................................................................................................. 40-675
S-15 Fuel mixes into engine oil ....................................................................................................... 40-676
S-16 Water mixes into engine oil (milky) ......................................................................................... 40-677
S-17 Coolant temperature rises too high (overheating) .................................................................. 40-678
S-18 Unusual noise is heard ........................................................................................................... 40-679
S-19 Vibration is excessive ............................................................................................................. 40-680
S-20 Air cannot be bled from fuel circuit ......................................................................................... 40-681
50 Disassembly and assembly
General information on disassembly and assembly ...............................................................................50-4
How to read this manual......................................................................................................................50-4
Coating materials list ...........................................................................................................................50-6
Special tool list .................................................................................................................................. 50-10
Sketches of special tools................................................................................................................... 50-14
Engine and cooling system ...................................................................................................................50-24
Removal and installation of fuel supply pump assembly................................................................... 50-24
Removal and installation of fuel injector assembly............................................................................ 50-28
Removal and installation of engine hood assembly .......................................................................... 50-36
Removal and installation of cylinder head assembly......................................................................... 50-39
Removal and installation of radiator assembly.................................................................................. 50-50
Removal and installation of air aftercooler assembly ........................................................................ 50-53
Removal and installation of hydraulic oil cooler assembly ................................................................ 50-55
Removal and installation of engine assembly ................................................................................... 50-57
Removal and installation of belt for alternator and air conditioner compressor................................. 50-62
Removal and installation of engine front oil seal assembly............................................................... 50-64
Removal and installation of engine rear oil seal assembly................................................................ 50-68
Removal and installation of cooling fan and fan motor assembly ..................................................... 50-72
Removal and installation of fuel tank assembly ................................................................................ 50-75
Removal and installation of KCCV ventilator assembly .................................................................... 50-77
Removal and installation of KDOC muffler........................................................................................ 50-78
Removal and installation of EGR cooler assembly ........................................................................... 50-79
Removal and installation of EGR valve assembly............................................................................. 50-81
Power train............................................................................................................................................50-83
Removal and installation of transfer assembly.................................................................................. 50-83
Disassembly and assembly of transfer assembly ............................................................................. 50-87
Removal and installation of parking brake assembly ...................................................................... 50-110
Removal and installation of parking brake cylinder assembly......................................................... 50-112
Disassembly and assembly of parking brake assembly.................................................................. 50-113
Removal and installation of front axle assembly ............................................................................. 50-119
Removal and installation of rear axle assembly .............................................................................. 50-121
Disassembly and assembly of axle housing assembly ................................................................... 50-124
Disassembly and assembly of differential assembly ....................................................................... 50-133
WA200-7
00 Index and foreword
Index
00-11

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