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 144 of 1364

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Step 5.

Check resistance between pins B and D of receptacle on starter control

relay. If no resistance exists, replace starter control relay. Refer to page

2-561. If resistance exists, go to step 6. Connect wiring harness to starter

control relay.

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 6.

Disconnect leads 14D near engine disconnect. Place red probe in lead

14D (terminal end) and ground black probe. Set MASTER and INST

switches ON. Press START switch. If multimeter indicates no voltage,

repair lead 14D between disconnect and starter control relay. Refer to

page 2-371. Connect leads 14D. If multimeter indicates about 24 volts,

go to step 7. Set MASTER and INST switches OFF.

2-118