10.6.16 Inhalt/Contens Seite/Page 7
Inhalt / Contens
7.8.2 After the oil level check and refilling the oil ..................................................................... .. 108
7.9 Replacement of engine oil and engine oil filter............................................................................... .. 109
7.9.1 After the oil change ........................................................................................................ .. 111
7.10 Verifying the starter battery and (if necessary) the battery bank .................................................... .. 112
7.10.1 Battery ............................................................................................................................ .. 112
7.10.1.1 Check battery and cable connections .............................................................. .. 112
7.10.1.2 Check electrolyte level ..................................................................................... .. 112
7.10.1.3 Check electrolyte density ................................................................................. ... 113
8 Generator Failure.................................................................................................................................... ... 115
8.1 Personal requirements.................................................................................................................... .. 115
8.2 Hazard notes for the troubleshooting.............................................................................................. .. 115
8.3 Tools and measuring instruments .................................................................................................. ... 117
8.4 Overloading the Generator ............................................................................................................. .. 117
8.4.1 Effects of Short Circuiting and Overloading on the Generator ....................................... .. 117
8.4.2 Overloading the Generator with Electric Motors ............................................................. .. 117
8.4.3 Generator Voltage Fluctuations and Monitoring ............................................................. .. 118
8.4.4 Automatic Voltage Monitoring and Auto-Shut Down ...................................................... .. 118
8.5 Low Generator-Output Voltage....................................................................................................... .. 118
8.5.1 Discharge the capacitors ................................................................................................ .. 118
8.5.2 Checking the Capacitors ................................................................................................ .. 119
8.6 Testing generator stator windings .................................................................................................. ... 121
8.6.1 Checking the generator voltage ...................................................................................... .. 121
8.6.2 Measuring the coil resistance ......................................................................................... .. 121
8.6.3 Checking the coil(s) to short-circuit ................................................................................ .. 121
8.6.4 Measuring the inductive resistance ................................................................................ .. 122
8.6.5 Testing generator stator winding for „shorts“ to ground .................................................. .. 122
8.6.6 Coil Resistance Measurements in Stator Windings ........................................................ .. 128
8.6.6.1 Checking windings. .......................................................................................... .. 128
8.7 Measuring the Coil Inductive Resistance........................................................................................ .. 129
8.8 Generator provides no Voltage....................................................................................................... .. 129
8.8.1 Rotor Magnetism Loss and „Re-magnetizing“ ................................................................ .. 129
8.8.2 Stop solenoid .................................................................................................................. .. 130
8.8.3 Damage to starter motor ................................................................................................. .. 131
8.9 Troubleshooting Table ................................................................................................................... ... 132
8.9.1 Generator faults .............................................................................................................. .. 132
8.9.1.1 Generator output to low. For 50 Hz versions: less than 200 V. For 60 Hz versions: less
than 100 V. 132
8.9.1.2 Generator voltage to high (more then 240 V-50 Hz / 135 V-60 Hz). If the generator is
providing excessively high voltage, the following potential causes should be investiga-
ted: 132
8.9.1.3 Generator voltage fluctuates............................................................................ .. 132
8.9.1.4 Generator is not able to start a electric motor.................................................. .. 132
8.9.1.5 Diesel motor fails to start.................................................................................. .. 132
8.9.1.6 Starter motor is turning the engine, but generator fails to start........................ ... 133
8.9.1.7 Motor does not achieves enough speed during starting process..................... .. 133
8.9.1.8 Motor runs irregular.......................................................................................... .. 133
8.9.1.9 Motor speed drops. .......................................................................................... .. 133
8.9.1.10 Motor runs in off position.................................................................................. .. 134
8.9.1.11 Motor stops by itself. ........................................................................................ .. 134
8.9.1.12 Sooty black exhaust......................................................................................... .. 134
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