Komatsu Galeo PC800-8 Shop Manual page 12

SEN00375-06
H-19 Travel speed or power is low .......................................................................................... 27
H-20 Machine does not travel (only one track) ........................................................................ 28
H-21 Travel speed does not change........................................................................................ 29
H-22 Upper structure does not swing ...................................................................................... 30
H-23 Swing speed or acceleration is low................................................................................. 32
H-24 Swing speed or acceleration is low during compound operation of swing and
work equipment ..........................................................................................................
H-25 Upper structure overruns excessively when it stops swinging ........................................ 36
H-26 Large shock is made when upper structure stops swinging ........................................... 37
H-27 Large abnormal sound is made when upper structure stops swinging ........................... 38
H-28 Hydraulic drift of swing is large ....................................................................................... 39
Troubleshooting of engine (S-mode)
Troubleshooting of engine (S-mode) ...........................................................................................
Method of using troubleshooting chart.....................................................................................
S-1 Starting performance is poor .............................................................................................
S-2 Engine does not start ........................................................................................................
S-3 Engine does not pick up smoothly .................................................................................... 12
S-4 Engine stops during operations......................................................................................... 13
S-5 Engine does not rotate smoothly....................................................................................... 14
S-6 Engine lacks output (or lacks power) ................................................................................ 15
S-7 Exhaust gas color is black (incomplete combustion) ........................................................ 16
S-8 Oil consumption is excessive (or exhaust smoke is blue)................................................. 18
S-9 Oil becomes contaminated quickly.................................................................................... 19
S-10 Fuel consumption is excessive ....................................................................................... 20
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down) .............................. 21
S-12 Oil pressure drops........................................................................................................... 22
S-13 Oil level rises (Entry of coolant/fuel)................................................................................ 24
S-14 Coolant temperature becomes too high (overheating).................................................... 26
S-15 Abnormal noise is made.................................................................................................. 27
S-16 Vibration is excessive...................................................................................................... 28
50 Disassembly and assembly
General information on disassembly and assembly
General information on disassembly and assembly....................................................................
How to read this manual ..........................................................................................................
Coating materials list ...............................................................................................................
Special tools list .......................................................................................................................
Sketches of special tools ......................................................................................................... 14
Engine and cooling system (SAA6D140E-5)
Engine and cooling system .........................................................................................................
Removal and installation of engine, PTO and hydraulic pump assembly ................................
Removal and installation of cooling assembly ......................................................................... 10
Removal and installation of aftercooler assembly ................................................................... 15
Removal and installation of fuel cooler and air conditioner condenser assembly ................... 17
Removal and installation of fan motor assembly ..................................................................... 19
Removal and installation of fuel tank assembly ....................................................................... 24
Engine (SAA6D140E-5)
Engine (SAA6D140E-5) ..............................................................................................................
Removal and installation of fuel supply pump assembly .........................................................
Removal and installation of cylinder head assembly ...............................................................
Removal and installation of fuel injector assembly .................................................................. 23
Removal and installation of engine front seal .......................................................................... 26
Removal and installation of engine rear seal........................................................................... 28
10
00 Index and foreword
34
SEN00795-02
3
3
6
8
SEN01052-01
2
2
4
7
SEN01053-01
2
2
SEN01054-01
2
2
7
PC800, 850-8