MASTER RELAY CIRCUIT. (Cont) - TM-9-2350-238-20-10134

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 8.

Disconnect lead 459A from circuit breaker. Place red probe in circuit

breaker terminal and ground black probe. Set MASTER switch ON. If

multimeter indicates no voltage, replace circuit breaker. Refer to page

2-590. If multimeter indicates about 24 volts, go to step 9. Set MASTER

switch OFF. Connect lead 459A to circuit breaker.

2-108