Repair Manual Mobile Generator - Wacker Neuson

G 70 Table of Contents
1 Safety Information 9
1.1 Operating Safety ................................................................................ 10
1.2 Service Safety .................................................................................... 12
1.3 Operator Safety while using Internal Combustion Engines ................ 14
1.4 Towing Safety ..................................................................................... 15
2 Theory of Operation 16
2.1 Basic Schematic ................................................................................. 16
2.2 Introduction ......................................................................................... 17
2.3 Terminology ........................................................................................ 19
3 Electrical Testing Techniques 23
3.1 Checking Continuity ........................................................................... 23
3.2 Checking Resistance .......................................................................... 23
3.3 Checking Voltage ............................................................................... 23
3.4 Probing ECM Plugs and Pins ............................................................. 24
4 ECM Background Information 25
4.1 ECM Handling Precaution .................................................................. 25
4.2 Normal Boot-up Sequence ................................................................. 26
4.3 Display Variables and Values ............................................................. 28
4.4 ECM Display Screens—Start Switch in Remote Position ................... 29
4.5 Additional Variables Monitored by the ECM ....................................... 30
4.6 Voltage Display Errors ........................................................................ 32
4.7 ECM Automatic Engine Shutdown Conditions ................................... 34
4.8 ECM Wire Numbering & Colors .......................................................... 35
4.9 Removing and Installing the ECM ...................................................... 36
5 ECM/Sensor Troubleshooting 38
5.1 Checking Power to the ECM .............................................................. 39
5.2 Checking Outgoing Power From the ECM ......................................... 41
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