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FUEL SHUT-OFF SOLENOID TESTING
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TM-10-3930-673-20-2 All Terrain Lifter Army System (ATLAS) 10 000 lb Capacity Manual
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FUEL TRANSFER PUMP REPLACEMENT/TESTING
TM 10-3930-673-20-2
NOTE
Multimeter resistance should read 0.82 ohms (0.50) during test in Step (1)(c). If reading is not within
acceptable limits, solenoid requires replacement. Notify Direct Support Maintenance.
(c)
Place one probe of multimeter on white wire terminal (6) of connector (2). Place other probe on black wire
terminal (5) of connector (2).
(d)
Connect fuel shut-off connector (2) to main wiring harness connector (3).
NOTE
Ensure auxiliary fuel shut-off switch is in the ON position during Step (2) below.
(2)
Test current draw of fuel shut-off solenoid (1).
(a)
Disconnect fuel shut-off solenoid connector (2) from main wire harness connector (3).
(b)
Place one probe of multimeter on red wire terminal (4) of wire harness connector (3). Place other probe on
black wire terminal (5) of wire harness connector (3).
NOTE
Voltage should read 24.4 volts during test in Step (2)(c). If reading is not within acceptable limits,
solenoid requires replacement. Notify Direct Support Maintenance.
(c)
Have assistant turn starter keyswitch to the ON position without starting engine.
(d)
Have assistant turn starter keyswitch to the OFF position.
(e)
Connect fuel shut-off solenoid connector (2) to main wire harness connector (3).
(f)
Have assistant start engine (TM 10-3930-673-10).
NOTE
If switch arm moves 2 in. to rear of vehicle, switch functions correctly.
(g)
Observe movement of switch.
(h)
Turn engine OFF (TM 10-3930-673-10).
END OF TASK
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