WACKER Group LTC 4 Repair Manual page 7

LTC Repair
5.12 Engine Shuts Down-Flowchart 5A ................................................... 73
5.13 Checking Oil Pressure and Coolant Temperature Switches .............. 74
5.14 General Engine Troubleshooting ........................................................ 75
6. Caterpillar Engine Troubleshooting
6.1 Troubleshooting Flowcharts ............................................................... 78
6.2 Engine Does Not Crank-Flowchart 6A ........................................... 79
6.3 Checking Keyswitch and Wiring ......................................................... 80
6.4 Replacing Keyswitch .......................................................................... 81
6.5 Engine Cranks But Does Not Start-Flowchart 7A ............................ 82
6.6 Checking Fuel Flow ............................................................................ 83
6.7 Checking Glow Plug Wiring ................................................................ 84
6.8 Checking Glow Plugs ......................................................................... 84
6.9 Engine Shuts Down-Flowchart 8A ................................................... 85
6.10 Checking Oil Pressure and Coolant Temperature Switches .............. 86
6.11 General Engine Troubleshooting ........................................................ 87
7. Electrical Troubleshooting Procedures
7.1 Troubleshooting Methodology ............................................................ 90
7.2 Schematic Components ..................................................................... 90
7.3 Schematic for 60 Hz Metal Halide 4-Light Units ................................. 91
7.4 Checking Continuity ........................................................................... 92
7.5 Checking resistance ........................................................................... 92
7.6 Checking voltage ................................................................................ 92
7.7 Troubleshooting Flowcharts ............................................................... 92
7.8 Lights do not Illuminate-Flowchart 1A .............................................. 93
7.9 Lights do not Illuminate-Flowchart 1B .............................................. 94
7.10 Lights do not Illuminate-Flowchart 1C .............................................. 95
7.11 Lights do not Illuminate-Flowchart 1D ............................................. 96
7.12 Checking Engine Speed ..................................................................... 97
7.13 Checking Generator Voltage at Receptacle ....................................... 98
7.14 Replacing Receptacle ........................................................................ 99
7.15 Checking Voltage to the Main Circuit Breaker .................................. 100
7.16 Checking Voltage Between Main Circuit Breaker and Terminal Strip 102
7.17 Checking Individual Circuit Breakers ................................................ 104
7.18 Confirming a Malfunctioning Circuit Breaker .................................... 106
7.19 Checking Incoming Voltage to Control Panel Capacitor(s) .............. 107
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