
Seite/Page 6 Panda_6500_7mini_PMS_eng.R01 - Kapitel/Chapter A: 22.3.11
6.13 The seawater circuit ..................................................................................................... 136
6.13.1 Cleaning the seawater filter ............................................................................................. 136
6.14 Reasons for frequent impeller wear ........................................................................... 136
6.14.1 Replacement of the impeller ......................................................................................... . 137
7 Generator Faults.........................................................................................................139
7.1 Personal requirements ................................................................................................. 139
7.2 Hazard notes for this chapter ...................................................................................... 139
7.3 Tools and Measuring Instruments ..............................................................................140
7.4 Troubleshooting Table and Flowchart .......................................................................141
7.4.1 Generator output voltage too low ....................................................................................141
7.4.2 Generator voltage too high (more than 240 V - 50 Hz .................................................... 141
7.4.3 Generator voltage fluctuates ...........................................................................................141
7.4.4 Generator not able to start electric motor ........................................................................141
7.4.5 Diesel motor fails to start ................................................................................................. 141
7.4.6 Starter is turning motor, but fails to start .......................................................................... 141
7.4.7 Motor does not achieve enough speed during starting process ......................................142
7.4.8 Motor runs unsteady ........................................................................................................142
7.4.9 Motor speed drops ........................................................................................................... 142
7.4.10 Motor runs in off position .................................................................................................142
7.4.11 Motor stops by itself ......................................................................................................... 143
7.4.12 Sooty, black exhaust .......................................................................................................143
7.4.13 Generator must be shut off immediately if: ...................................................................... 143
7.4.14 Troubleshooting for the VCS-Voltage Control ................................................................. 143
7.4.15 Troubleshooting Flowcharts .......................................................................................... . 144
7.4.15.1 Details and explanations concerning the troubleshooting flowchart....................................... 146
7.5 Versions of the generator power terminal box ..........................................................150
7.6 Overloading the generator ........................................................................................... 154
7.6.1 Monitoring the Generator Voltage ................................................................................. . 155
7.6.2 Automatic voltage monitoring and auto-shut down ..........................................................155
7.7 Setting the speed governor of the actuator ...............................................................156
7.7.1 Setting the maximum upper speed setting ...................................................................... 156
7.7.2 Setting the normal speed settings ................................................................................... 157
7.7.3 Greasing the trapezoidal thread spindle on the speed actuator .................................... . 158
7.7.4 Consequences of a continual overloading of the Actuator ............................................ . 159
7.7.5 Possible faults concerning the speed control „VCS“ ....................................................... 159
7.7.6 Steps to check the voltage control in case of a failure: .................................................. 159
7.7.6.1 ..........................................The following measures are necessary if the actuator is jammed: 160
7.7.6.2 Checking the generator voltage limitation .............................................................................. 160
7.8 Generator-Output Voltage is too low .......................................................................... 161
7.8.1 Discharging the Capacitors ............................................................................................. 161
7.8.2 Checking the Capacitors ................................................................................................ 162
7.8.2.1 Checking the electrical connections to the capacitors............................................................ 162
7.8.3 Check the Generator Voltage ..........................................................................................162
7.8.4 Measuring the Ohm Resistance of the Generator Windings ........................................... 163
7.8.5 Check the Windings for Short Circuiting .......................................................................... 163
7.8.6 Measuring the Inductive Resistance .............................................................................. . 164
7.9 Generator provides no voltage ................................................................................... 164
7.9.1 Rotor Magnetism Loss and "Re-magnetising" ................................................................. 164
7.10 Engine Starting Problems ............................................................................................ 165
7.10.1 Electric Fuel Solenoid Valve ........................................................................................... 165
7.10.2 Re-start with Failure Bypass Switch ................................................................................ 165
7.10.3 Lifting solenoid for motor stop - optional ..........................................................................166
7.10.4 Troubleshooting Table .....................................................................................................167
8 Tables..........................................................................................................................169
8.1 Technical Data .............................................................................................................. 169
8.2 Rated current ................................................................................................................171