LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson
LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson
Lombardini Engine Troubleshooting LTC Repair 5.3 Checking Keyswitch and Wiring See Graphic: wc_gr003509 WARNING Electric shock hazard. Only qualified personnel should conduct these tests. 5.3.1 When troubleshooting Lombardini engines that do not crank, check that the B (black) wire (a) is connected to the starter solenoid. 5.3.2 Remove the screws securing the control panel (b) to the mounting bracket and remove the control panel from the bracket. 5.3.3 Remove the back cover (c) of the control panel box and check that the the wiring to the keyswitch (d) is clean and tight. Check that the appropriate wires are connected to the proper terminals of the keyswitch. 5.3.4 Check for 12V (battery voltage approximately 12) between terminal 30 of keyswitch and ground. If no voltage is measured, repair wiring back to battery. If voltage is measured, continue. 5.3.5 Place the keyswitch in the START position and check for 12V (battery voltage approximately 12) between terminal 50 of the keyswitch and ground. If no voltage is measured, replace the keyswitch. If voltage is measured, continue. 5.3.6 Place the keyswitch in the START position and check for 12V (battery voltage approximately 12) between the B (black) wire (a) and ground at the starter solenoid. If no voltage is measured, repair the wiring between terminal 50 of the keyswitch and the starter solenoid. If voltage is measured and the engine still will not crank, there is a problem with the starter motor. See the Lombardini Engine Repair Manual for further information. 58
LTC Repair Lombardini Engine Troubleshooting c d a 59 V 50 15/54 B L 30 b wc_gr003509
- Page 8 and 9: Table of Contents LTC Repair 7.12 R
- Page 10 and 11: Safety Information LTC Repair 1.2 O
- Page 12 and 13: Safety Information LTC Repair 1.4 T
- Page 14 and 15: Safety Information LTC Repair 1.6 L
- Page 16 and 17: Safety Information LTC Repair 1.7 S
- Page 18 and 19: Safety Information LTC Repair Ref.
- Page 20 and 21: Safety Information LTC Repair Ref.
- Page 22 and 23: Technical Data LTC 4L 2. Technical
- Page 24 and 25: Technical Data LTC 4L 2.2 Generator
- Page 26 and 27: Technical Data LTC 4L 26
- Page 28 and 29: Operation LTC 4L 3.3 Leveling Trail
- Page 30 and 31: Operation LTC 4L 3.6 Raising Tower
- Page 32 and 33: Operation LTC 4L 3.7 Lowering Tower
- Page 34 and 35: Operation LTC 4L 3.8 Control Panels
- Page 36 and 37: Operation LTC 4L 3.10 Starting See
- Page 38 and 39: Maintenance LTC Repair 4. Maintenan
- Page 40 and 41: Maintenance LTC Repair 4.3 Installi
- Page 42 and 43: Maintenance LTC Repair 4.5 Replacin
- Page 44 and 45: Maintenance LTC Repair 44 4.8 Lomba
- Page 46 and 47: Maintenance LTC Repair 4.10 Engine
- Page 48 and 49: Maintenance LTC Repair 4.12 Wiring
- Page 50 and 51: Maintenance LTC Repair 4.14 Wiring
- Page 52 and 53: Maintenance LTC Repair 4.16 Wiring
- Page 54 and 55: Maintenance LTC Repair 4.18 Generat
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<strong>Lombardini</strong> <strong>Engine</strong> <strong>Troubleshooting</strong> <strong>LTC</strong> <strong>Repair</strong><br />
5.3 Checking Keyswitch and Wiring<br />
See Graphic: wc_gr003509<br />
WARNING<br />
Electric shock hazard. Only qualified personnel should conduct these<br />
tests.<br />
5.3.1 When troubleshooting <strong>Lombardini</strong> engines that do not crank, check<br />
that the B (black) wire (a) is connected to the starter solenoid.<br />
5.3.2 Remove the screws securing the control panel (b) to the mounting<br />
bracket and remove the control panel from the bracket.<br />
5.3.3 Remove the back cover (c) of the control panel box and check that the<br />
the wiring to the keyswitch (d) is clean and tight. Check that the<br />
appropriate wires are connected to the proper terminals of the<br />
keyswitch.<br />
5.3.4 Check for 12V (battery voltage approximately 12) between terminal 30<br />
of keyswitch and ground. If no voltage is measured, repair wiring back<br />
to battery. If voltage is measured, continue.<br />
5.3.5 Place the keyswitch in the START position and check for 12V (battery<br />
voltage approximately 12) between terminal 50 of the keyswitch and<br />
ground. If no voltage is measured, replace the keyswitch. If voltage is<br />
measured, continue.<br />
5.3.6 Place the keyswitch in the START position and check for 12V (battery<br />
voltage approximately 12) between the B (black) wire (a) and ground<br />
at the starter solenoid. If no voltage is measured, repair the wiring<br />
between terminal 50 of the keyswitch and the starter solenoid. If<br />
voltage is measured and the engine still will not crank, there is a<br />
problem with the starter motor. See the <strong>Lombardini</strong> <strong>Engine</strong> <strong>Repair</strong><br />
Manual for further information.<br />
58