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 366 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 2.

Place red probe on pin C (lead 401). Ground black probe. Set MASTER

switch ON. Set START-OFF-RUN switch to START. If multimeter indicates

about 24 volts, go to step 3. If multimeter indicates no voltage, replace

driver's heater control box. Refer to page 2-1029. Set MASTER switch

OFF. Set START-OFF-RUN switch OFF. Connect wiring harness.

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