Komatsu Galeo PC138US-8 Shop Manual page 11

00 Index and foreword
H-24 When upper structure stops swinging, it makes large sound ............................................. 24
H-25 Hydraulic drift of swing is large........................................................................................... 25
H-26 Flow rate in attachment circuit cannot be adjusted ............................................................ 26
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 smoke is black (incomplete combustion)................................................................ 16
S-8 Oil consumption is excessive (or exhaust smoke is blue) .................................................... 17
S-9 Oil becomes contaminated quickly ....................................................................................... 18
S-10 Fuel consumption is excessive........................................................................................... 19
S-11 Oil is in coolant (or coolant spurts back or coolant level goes down) ................................. 20
S-12 Oil pressure drops .............................................................................................................. 21
S-13 Oil level rises (Entry of coolant or fuel)............................................................................... 22
S-14 Coolant temperature becomes too high (overheating) ....................................................... 23
S-15 Abnormal noise is made ..................................................................................................... 24
S-16 Vibration is excessive ......................................................................................................... 25
50 Disassembly and assembly
General information on disassembly and assembly
How to read this manual .............................................................................................................
List of adhesives .........................................................................................................................
Special tool list ............................................................................................................................
Sketche of special tool ................................................................................................................
Engine and cooling system
Removal and installation of fuel supply pump assembly.............................................................
Removal and installation of fuel injector assembly .....................................................................
Removal and installation of front oil seal.....................................................................................
Removal and installation of rear oil seal .....................................................................................
Removal and installation of cylinder head assembly .................................................................. 12
Removal and installation of radiator assembly............................................................................ 19
Removal and installation of aftercooler assembly ....................................................................... 21
Removal and installation of work equipment oil cooler assembly ............................................... 23
Removal and installation of engine and work equipment pump assembly.................................. 26
Removal and installation of fuel tank assembly .......................................................................... 31
Power train
Removal and installation of travel motor and final drive assembly .............................................
Removal and installation of swing motor and swing machinery assembly..................................
Disassembly and assembly of swing machinery assembly.........................................................
Removal and installation of swing circle assembly ..................................................................... 12
Undercarriage and frame
Disassembly and assembly of track roller...................................................................................
Disassembly and assembly of idler assembly.............................................................................
Disassembly and assembly of recoil spring ................................................................................
Removal and installation of of track shoe assembly ...................................................................
Removal and installation of sprocket .......................................................................................... 13
Removal and installation of revolving frame assembly ............................................................... 14
Removal and installation of counterweight assembly (Machine without add-on weight)............. 16
Removal and installation of counterweight assembly (Machine with add-on weight).................. 18
Hydraulic system
Removal and installation of center swivel joint assembly ...........................................................
Disassembly and assembly of center swivel joint assembly .......................................................
PC138US, USLC-8
SEN01977-02
SEN02469-01
4
8
9
SEN02709-00
2
4
7
11
SEN02710-00
2
4
7
9
SEN02711-00
2
4
6
SEN02712-00
2
5
8
11
SEN02713-00
2
4
9