TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
5.
HAND-HELD SPOTLIGHT DOES NOT OPERATE (MODEL A ONLY) (continued).
9.
TEST OPTIONS
KNOWN INFO
Is there continuity
Spotlight bulb OK.
Continuity Test.
measured between the
Worklight OK.
REASON FOR QUESTION
spotlight harness
Supply harness OK.
connector and the
Cab control box OK.
Power is transferred from
main junction box
Linking harness OK.
the main junction box to
terminal strip?
Main junction box
the spotlight via this wire
harness OK.
harness.
POSSIBLE PROBLEMS
Spotlight harness faulty.
Replace spotlight
NO
wire harness
YES
Fault not corrected.
Notify supervisor.
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