SEN03765-13 00 Index and foreword
8PC130-8
Failure code [DWK0KB] 2-stage relief sol short.......................................................................... 42
Troubleshooting by failure code, Part 4 SEN04122-01
Failure code [DXA8KA] PC-EPC sol discon................................................................................ 2
Failure code [DXA8KB] PC-EPC sol short.................................................................................. 4
Failure code [DXE4KA] Service current EPC discon.................................................................. 6
Failure code [DXE4KB] Service current EPC short..................................................................... 8
Failure code [DY20KA] Wiper working abnormality .................................................................... 10
Failure code [DY20MA] Wiper parking abnormality .................................................................... 12
Failure code [DY2CKA] Washer drive discon.............................................................................. 14
Failure code [DY2CKB] Washer drive short................................................................................ 16
Failure code [DY2DKB] Wiper drive (for) short ........................................................................... 18
Failure code [DY2EKB] Wiper drive (rev) short........................................................................... 20
Troubleshooting of electrical system (E-mode) SEN04123-01
Before carrying out troubleshooting of electrical system............................................................. 3
Information in troubleshooting table............................................................................................5
E-1 When starting switch turned ON, machine monitor displays nothing.................................... 6
E-2 When starting switch turned ON (before starting engine), basic check item lights up.......... 8
E-3 Engine does not start (Engine does not turn)....................................................................... 11
E-4 Preheater does not operate..................................................................................................1
4
E-5 Automatic warm-up system does not operate (in cold season)............................................ 16
E-6 All work equipment, swing, and travel mechanism do not move or cannot be locked.......... 18
E-7 Precaution lights up while engine is running......................................................................... 20
E-8 Emergency stop item lights up while engine is running........................................................ 25
E-9 Engine coolant temperature gauge does not indicate normally............................................ 26
E-10 Hydraulic oil temperature gauge does not indicate normally.............................................. 27
E-11 Fuel level gauge does not indicate normally....................................................................... 29
E-12 Contents of display by machine monitor are different from applicable machine................. 31
E-13 Machine monitor does not display some items................................................................... 31
E-14 Function switch does not work............................................................................................ 31
E-15 Auto-decelerator does not operate normally....................................................................... 32
E-16 Working mode does not change......................................................................................... 33
E-17 Travel speed does not change............................................................................................ 34
E-18 Alarm buzzer cannot be stopped........................................................................................ 35
E-19 Windshield wiper and window washer do not operate........................................................ 36
E-20 Power maximizing function does not operate normally ...................................................... 40
E-21 Swing holding brake does not operate normally................................................................. 42
E-22 Travel alarm does not sound or does not stop sounding.................................................... 44
E-23 Air conditioner does not operate normally (including air conditioner abnormality record).. 45
E-24 While starting switch is in OFF position, service meter is not displayed............................. 57
E-25 Machine monitor cannot be set in service mode ................................................................ 57
E-26 Monitoring function does not display lever control signal normally..................................... 58
E-27 KOMTRAX system does not operate normally................................................................... 74
Troubleshooting of hydraulic and mechanical system (H-mode) SEN04124-00
Information contained in troubleshooting table............................................................................ 3
System chart for hydraulic and mechanical systems.................................................................. 4
H-1 Speed or power of all work equipment, swing, and travel are low........................................ 6
H-2 Engine speed sharply drops or engine stalls........................................................................ 7
H-3 No work equipment, travel and swing move......................................................................... 8
H-4 Abnormal noise is heard from around hydraulic pump......................................................... 8
H-5 Fine control mode does not function .................................................................................... 9
H-6 Speed or power of boom is low ............................................................................................ 10
H-7 Speed or power of arm is low............................................................................................... 11
H-8 Speed or power of bucket is low........................................................................................... 12
H-9 Work equipment does not move in its single operation........................................................ 13
H-10 Hydraulic drift of work equipment is large........................................................................... 14
H-11 Time lag of work equipmentis large................................................................................... 15
H-12 Power maximizing function does not operate normally...................................................... 15
