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TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE. (cont)
5-8.
Instrument Panel Troubleshooting. (cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
q. ENGINE OIL PRESSURE GAGE DOES NOT OPERATE. (cont)
Step 6.
Test the continuity of the wire assembly. Disconnect Terminal
B from oil pressure sender, as shown.
Disconnect main harness
from intermediate harness, as shown. Connect multimeter to
Terminal B and Pin B.
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 7.
Return M10A Forklift to original equipment condition.
r .
START SWITCH DOES NOT OPERATE.
NOTE
Master disconnect switch must be off.
Before proceeding with continuity tests, 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 start switch. Connect multimeter to
two terminals at the back of switch.
Hold switch in START
p o s i t i o n.
I f t h e m u l t i m e t e r d o e s n o t m o v e , t h e c i r c u i t d o e s n o t h a ve
continuity. Replace start switch, refer to paragraph 5-19.
5-68
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