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TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE. (cont)
5-7. Light System Troubleshooting. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
d. REAR WORK LIGHT(S) DOES NOT OPERATE. (cont)
Step 6.
T e s t t h e l i g h t s w i t c h f o r c o n t i n u i t y . D i s c o n n e c t i n s t r u m e nt
panel harness from light switch, as shown. Turn light switch
to ON position. Connect the multimeter to Pin H on the light
switch and to ground.
If the multimeter needle does not move, the circuit does not have
continuity. Replace light switch, refer to paragraph 5-27.
Step 7. Return M10A Forklift to original equipment condition.
e. STOP LIGHT/TAILLIGHT(S) DOES NOT OPERATE.
Step 1. Remove grommet and check bulb.
If the stop light/taillight bulb is burned out, replace, refer to
paragraph 5-35.
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 2.
T e s t t h e c o n t i n u i t y o f t h e s t o p l i g h t / t a i l l i g h t a s s e m b l y.
Connect the multimeter to Terminals A and B at the back of the
light housing.
5-34
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