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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
c .
ENGINE FAN OFF LIGHT DOES NOT OPERATE. (cont)
Step 3.
Test the continuity of the wire assembly. Disconnect three pin
connector from fan clutch relay, as shown. Connect multimeter
to Pin C and Connector D.
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 4.
Test the continuity of the second wire assembly. Disconnect
Terminal F from the engine fan off switch, as shown. Connect
multimeter to Terminals E and F.
If the multimeter needle does not move, the circuit does not have
continuity. Identify as a defective wire and contact Direct Support
Maintenance.
Step 5.
Return M10A Forklift to original equipment condition.
5-42
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