TM-9-2350-238-20-1

HULL AND RELATED COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL

MAY 1994

TM-9-2350-238-20-1 - Page 304 of 1364

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 5.

To access bulkhead disconnect, remove driver's seat, refer to page 2-952;

and remove driver's compartment aft cowl, refer to page 2-928. Disconnect

wiring harness at bulkhead disconnect. Place jumper wire to pin D and

socket D (lead 459). Place red probe in plug socket A (lead 37A). Ground

black probe. Set MASTER switch ON. If multimeter indicates about 24

volts,

repair lead 37A between IR RCVR switch and bulkhead disconnect.

Refer to page 2-371. If multimeter indicates no voltage, repair lead 37A

between bulkhead disconnect and circuit breaker. Refer to page 2-371.

Set MASTER switch OFF. Remove jumper wire (lead 459). Connect wiring

harness.

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