TM 9-233-227-14&P
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. DIM OR FLICKERING LIGHTS
Check for loose or damaged ground coming off connector
receptacle.
a. If ground is loose, clean and tighten.
b. If ground is broken, notify Direct Support Maintenance.
Using multimeter set to read voltage, check power source to make sure
Step 1.
there is approximately 110-vac coming to the semitrailer.
If multimeter measurement is not approximately 110-vac,
troubleshoot power source.
Step 2.
Check connector receptacle for damage.
Check junction boxes to make sure all circuit breakers are on.
Step 3.
Using multimeter set to read voltage, put red probe on one
Step 4.
contact for the outside receptacle and black probe on the other.
If multi meter measurement is not approximately 110-vac, replace
Unplug power source. Using multimeter set to read continuity,
Step 5.
put red probe on one end of wire leading from left side of
connector receptacle to left main circuit breaker and black
probe on the other end.
If muitimeter reads no continuity, notify Direct Support Maintenance.
Repeat step 5 for wire leading from right side of connector
Step 6.
receptacle to right main circuit breaker.