Komatsu PC200 -8 Shop Manual page 11

00 Index and foreword
Information in troubleshooting table ........................................................................................
H-1 Speed or power of whole work equipment, swing, and travel is low.................................
H-2 Engine speed lowers significantly or engine stalls............................................................
H-3 Work equipment, swing, and travel systems do not work ................................................. 10
H-4 Abnormal sound comes out from around hydraulic pump ................................................ 10
H-5 Auto-decelerator does not operate ...................................................................................
H-6 Fine control performance or response is low....................................................................
H-7 Speed or power of boom is low......................................................................................... 12
H-8 Speed or power of arm is low ........................................................................................... 13
H-9 Speed or power of bucket is low ....................................................................................... 14
H-10 Work equipment does not move singly ........................................................................... 14
H-11 Hydraulic drift of work equipment is large ....................................................................... 15
H-12 Time lag of work equipment is large ............................................................................... 17
H-13 When part of work equipment is relieved singly, other parts of work equipment move .. 17
H-14 Power maximizing function does not work...................................................................... 18
H-15 In compound operation of work equipment, speed of part loaded more is low............... 18
H-16 When machine swings and raises boom simultaneously, boom rising speed is low ...... 19
H-17 When machine swings and travels simultaneously, travel speed is low ......................... 19
H-18 Machine deviates during travel ....................................................................................... 20
H-19 Travel speed is low ......................................................................................................... 21
H-20 Machine is not steered well or steering power is low...................................................... 22
H-21 Travel speed does not change or travel speed is low/high ............................................. 23
H-22 Travel system does not move (only one side) ................................................................ 24
H-23 Upper structure does not swing ...................................................................................... 25
H-24 Swing acceleration or swing speed is low ...................................................................... 27
H-25 Upper structure overruns remarkably when it stops swinging ........................................ 28
H-26 Large shock is made when upper structure stops swinging ........................................... 29
H-27 Large sound is made when upper structure stops swinging ........................................... 29
H-28 Hydraulic drift of swing is large ....................................................................................... 30
H-29 Attachment circuit is not changed................................................................................... 31
H-30 Oil flow in attachment circuit cannot be controlled.......................................................... 31
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 lack 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/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 .............................................................................................................
Coating materials list...................................................................................................................
Special tools list...........................................................................................................................
Sketches of special tools............................................................................................................. 12
PC200, 220-8
SEN00093-20
6
7
9
11
11
SEN00246-02
4
8
9
SEN00659-06
2
4
7
9