SEN00793-02
PC800, 850-8 1
Machine model Serial number
PC800-8 50001 and up
PC800SE-8 50001 and up
PC800LC-8 50001 and up
PC850-8 10001 and up
PC850SE-8 10001 and up
HYDRAULIC EXCAVATOR
PC800-8
PC800SE-8
PC800LC-8
PC850-8
PC850SE-8
40 Troubleshooting
Troubleshooting of electrical system
(E-mode)
Troubleshooting of electrical system (E-mode).................................................................................................... 3
Before carrying out troubleshooting of electrical system ................................................................................ 3
Information contained in troubleshooting table ............................................................................................... 5
E-1 Engine does not start (Engine does not rotate)........................................................................................ 6
E-2 Preheater does not operate ..................................................................................................................... 9
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