LTC Repair Lombardini Engine Troubleshooting - Wacker Neuson

Electrical Troubleshooting Procedures LTC Repair
6.24 Checking Outgoing Voltage from Ballast Capacitor(s)
See Graphic: wc_gr003789
WARNING
Electric shock hazard. Only qualified personnel should conduct this
test.
Start this procedure with the machine shut down.
6.24.1 Remove the control panel front cover.
6.24.2 Disconnect the wiring to the lights by disconnecting the outgoing wires
(a, b, c, & d) from the ballast capacitors.
6.24.3 Start the machine.
6.24.4 Place the main circuit breaker and the individual circuit breaker(s) in
the ON position.
6.24.5 Using the AC voltage setting on the multimeter, measure the outgoing
voltage from the ballast capacitor(s) by measuring across the output
wire (e) and the wires (f) of the terminal strip. There should be
400V±10% measured.
If 400V±10% is not measured, it indicates a faulty ballast
capacitor. Double-check the ballast capacitor. See section
Confirming a Faulty Ballast Capacitor.
If 400V±10% is measured, the ballast capacitor is functioning.
Shutdown the machine and continue troubleshooting by checking
the continuity of the wiring from the ballast capacitor through the
junction box and on to the light fixtures.
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