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 131 of 1364

TM 9-2350-238-20-1

Make sure MASTER switch is OFF

before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step

5.

Disconnect wiring harness from master relay. Place red probe on master

relay receptacle pin (lead 81) and ground black probe. Set MASTER

switch ON. If multimeter indicates no voltage, replace master relay. Refer

to page 2-584. If multimeter indicates about 24 volts, go to step 6. Set

MASTER switch OFF. Connect wiring harness to master relay.

2-105