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TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE.
5-7.
Light System Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
b.
HEADLIGHT(S) DOES NOT OPERATE.
Step 5.
Test the front service lights wire assembly.
W i t h t he
instrument panel wiring harness disconnected from
t h e f r o n t
light harness (refer to step 3), connect the multimeter to
Terminal B and to connector.
If the multimeter needle does not move, the circuit does not have
c o n t i n u i t y.
I d e n t i f y a s a d e f e c t i v e w i r e a n d c o n t a c t D i r e ct
Support.
Step 6.
Return M10A Forklift to original equipment condition.
c .
FRONT BLACKOUT LIGHT DOES NOT OPERATE.
NOTE
Before proceeding with continuity test, refer to paragraph 2-13 for
i n i t i a l s e t u p i n s t r u c t i o n s .
Step 1. Test the continuity of the front blackout light assembly.
Connect the multimeter to terminal at the back of light housing
and to ground.
5-29
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