Komatsu PC210-8, Shop Manual

Page: 11 / 1200

00 Index and foreword UEN00093-06
PC210, 230, 240-8
9
Failure code [DFB4L8] Service Lever 2 Potentio Error ........................................................... 58
Troubleshooting of electrical system (E-mode) UEN00244-02
Troubleshooting of electrical system (E-mode) ....................................................................... 3
Before carrying out troubleshooting of electrical system ......................................................... 3
Troubleshooting of electrical system (E-mode) ....................................................................... 4
Information in troubleshooting table ........................................................................................ 7
E-1 When starting switch turned ON, machine monitor displays nothing ................................ 8
E-2 When starting switch turned ON (before starting engine), basic check item lights up ...... 10
E-3 Engine does not start (Engine does not turn) ................................................................... 13
E-4 Preheater does not operate .............................................................................................. 16
E-5 Automatic warm-up system does not operate (in cold season) ........................................ 18
E-6 All work equipment, swing, and travel mechanism do not move or cannot be locked ...... 20
E-7 Precaution lights up while engine is running..................................................................... 22
E-8 Emergency stop item lights up while engine is running .................................................... 27
E-9 Engine coolant temperature gauge does not indicate normally ........................................ 28
E-10 Hydraulic oil temperature gauge does not indicate normally .......................................... 29
E-11 Fuel level gauge does not indicate normally ................................................................... 31
E-12 Contents of display by machine monitor are different from applicable machine ............. 33
E-13 Machine monitor does not display some items ............................................................... 33
E-14 Function switch does not work........................................................................................ 33
E-15 Auto-decelerator does not operate normally................................................................... 34
E-16 Working mode does not change ..................................................................................... 35
E-17 Travel speed does not change........................................................................................ 36
E-18 Alarm buzzer cannot be stopped .................................................................................... 37
E-19 Windshield wiper and window washer do not operate .................................................... 40
E-20 Power maximising function does not operate normally................................................... 42
E-21 Swing holding brake does not operate normally ............................................................. 46
E-22 Travel alarm does not sound or does not stop sounding ................................................ 48
E-23 Air conditioner does not operate normally (including air conditioner abnormality record) 50
E-24 When starting switch is turned OFF, service meter is not displayed ............................... 62
E-25 Machine monitor cannot be set in service mode............................................................. 62
E-26 Monitoring function does not display lever control signal normally ................................. 63
E-27 KOMTRAX system does not operate normally ............................................................... 72
Troubleshooting of hydraulic and mechanical system (H-mode) UEN00245-02
System diagram of hydraulic and mechanical system............................................................. 4
Information in troubleshooting table ........................................................................................ 6
H-1 Speed or power of whole work equipment, swing, and travel is low................................. 7
H-2 Engine speed lowers extremely or engine stalls............................................................... 9
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 ................................................................................... 11
H-6 Fine control performance or response is low.................................................................... 11
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 lowers largely ............ 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