Komatsu Galeo PC800-8 Shop Manual page 11

00 Index and foreword
Troubleshooting of electrical system (E-mode)
Troubleshooting of electrical system (E-mode) ...........................................................................
Before carrying out troubleshooting of electrical system .........................................................
Information contained in troubleshooting table ........................................................................
E-1 Engine does not start (Engine does not rotate).................................................................
E-2 Preheater does not operate ..............................................................................................
E-3 Auto engine warm-up device does not work ..................................................................... 16
E-4 Auto-decelerator does not operate ................................................................................... 17
E-5 All work equipment, swing and travel do not move........................................................... 18
E-6 Machine push-up function does not operate normally ...................................................... 20
E-7 Boom shockless function does not operate normally........................................................ 22
E-8 Any item is not displayed on machine monitor.................................................................. 24
E-9 Part of display on machine monitor is missing.................................................................. 25
E-10 Machine monitor displays contents irrelevant to the model ............................................ 25
E-11 Fuel level monitor red lamp lights up while engine is running ......................................... 26
E-12 Engine coolant thermometer does not display normally ................................................. 28
E-13 Hydraulic oil temperature gauge does not display correctly ........................................... 30
E-14 Fuel gauge does not display correctly ............................................................................ 31
E-15 Swing lock monitor does not display correctly ................................................................ 32
E-16 When monitor switch is operated, nothing is displayed .................................................. 34
E-17 Windshield wiper and window washer do not work......................................................... 36
E-18 "Boom RAISE" is not correctly displayed in monitor function.......................................... 44
E-19 "Boom LOWER" is not correctly displayed in monitor function ....................................... 45
E-20 "Arm IN" is not correctly displayed in monitor function.................................................... 46
E-21 "Arm OUT" is not correctly displayed in monitor function................................................ 47
E-22 "Bucket CURL" is not correctly displayed in monitor function ......................................... 48
E-23 "Bucket DUMP" is not correctly displayed in monitor function ........................................ 49
E-24 "SWING" is not correctly displayed in monitor function................................................... 50
E-25 "Left travel" is not displayed normally in monitoring function .......................................... 52
E-26 "Right travel" is not displayed normally in monitoring function........................................ 54
E-27 "Service" is not correctly displayed in monitor function................................................... 56
E-28 KOMTRAX system does not operate normally ............................................................... 58
E-29 Air conditioner does not work.......................................................................................... 60
E-30 Step light does not light up or go off................................................................................ 61
E-31 Electric grease gun does not operate ............................................................................. 64
E-32 Travel alarm does not sound or does not stop sounding ................................................ 66
Troubleshooting of hydraulic and mechanical system (H-mode)
Troubleshooting of hydraulic and mechanical system (H-mode) ................................................
Before troubleshooting ............................................................................................................
Information in troubleshooting table ........................................................................................
H-1 Speed or power of all work equipment, travel, and swing is low.......................................
H-2 Engine speed lowers remarkably or engine stalls ............................................................ 10
H-3 All work equipment, travel, and swing systems do not work............................................. 12
H-4 Abnormal sound is heard from around pump ................................................................... 13
H-5 Boom speed or power is low............................................................................................. 14
H-6 Speed or power of arm is low ........................................................................................... 16
H-7 Speed or power of bucket is low ....................................................................................... 17
H-8 Boom does not move........................................................................................................ 18
H-9 Arm does not move........................................................................................................... 18
H-10 Bucket does not move .................................................................................................... 18
H-11 Hydraulic drift of work equipment is large ....................................................................... 19
H-12 Time lag of work equipment is large ............................................................................... 21
H-13 Heavy lift function does not operate or stop ................................................................... 22
H-14 Machine push-up function does not operate or stop....................................................... 22
H-15 Boom shockless function cannot be turned ON or OFF ................................................. 22
H-16 Machine deviates in one direction .................................................................................. 24
H-17 Machine deviates largely at start .................................................................................... 26
H-18 Machine deviates largely during compound operation ................................................... 27
PC800, 850-8
SEN00375-06
SEN00793-02
3
3
5
6
9
SEN00794-02
3
3
6
8
9