TM 5-3805-261-20
Section XVIII. DOME LIGHT AND SWITCH TROUBLESHOOTING.
7-65.
GENERAL INFORMATION. This section lists the common dome light and switch malfunctions which may occur
during the operation of the 130C Grader. You should perform the tests, inspections and corrective actions in the order
listed. Follow the troubleshooting procedures listed below step-by-step until you can go no further.
7-66.
DOME LIGHT AND SWITCH TROUBLESHOOTING PROCEDURES. This section cannot list all possible
malfunctions, nor can it list all possible tests, inspections or corrective actions. If a malfunction is not listed, contact
your supervisor.
DOME LIGHT AND SWITCH TROUBLESHOOTING AND MAINTENANCE PROCEDURES.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
DOME LIGHT WILL NOT OPERATE.
Step 1. Check the dome light bulb.
If the dome light bulb is burned out--replace. Refer to paragraph 7-68.
Step 2. Test the continuity of the dome light switch (Figure 7-93). Connect multimeter to the back of the switch.
Figure 7-93
If the multimeter needle does not move, the circuit does not have continuity. Replace dome light switch.
Refer to paragraph 7-68.
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