Wacker Neuson G 85

Table of Contents MG Repair
wc_br0171726en_004TOC.fm 6
5 ECM/Sensor Troubleshooting 44
5.1 Checking Power to the ECM ...............................................................44
5.2 Checking Outgoing Power From the ECM ..........................................47
5.3 Checking Temperature Sender ...........................................................48
5.4 Fuel Sender Failure and Low Fuel Fault .............................................50
5.5 Calibrating ECM Voltage Display ........................................................51
5.6 Calibrating ECM AC Amperage Display ..............................................52
5.7 Calibrating ECM AC Frequency Display .............................................53
5.8 Calibrating ECM DC Display ...............................................................54
5.9 Checking the ECM CAN BUS Circuit ..................................................55
5.10 Checking the Main Circuit Breaker ......................................................56
5.11 ECM Plugs and Pins ...........................................................................57
6 John Deere Engines With ECU 59
6.1 John Deere Engines With ECU Background .......................................59
6.2 Locations of Engine Electrical Components ........................................60
6.3 Engine Electrical Components ............................................................61
7 Engine Starting Troubleshooting 62
7.1 Checking the Fuses .............................................................................62
7.2 Checking the Engine Control Module (ECM) ......................................63
7.3 Checking the Emergency Stop Switch ................................................64
7.4 Checking the Starter Relay .................................................................65
7.5 Checking the Starter Solenoid .............................................................66
7.6 Checking the Intake Heater Relay .......................................................67
7.7 Checking the Main Circuit Breaker ......................................................68
8 Output Voltage Troubleshooting 69
8.1 Checking the Emergency Stop Switch ................................................69
8.2 Checking the Lug Door Switch ............................................................70
8.3 Checking the Main Circuit Breaker ......................................................71
8.4 Checking the Voltage Adjusting Rheostat ...........................................72
8.5 Checking the Auxiliary Winding ...........................................................73
8.6 Checking the Exciter Stator .................................................................74