WARNING HORN CIRCUIT.

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 1.

To access warning horn and circuit breaker, remove driver's seat. Refer to

page 2-952. Disconnect lead 506 from circuit breaker input. Place red

probe in lead 506. Ground black probe. Set MASTER switch ON. Set

INST switch ON. If multimeter indicates about 24 volts, go to step 2. If

multimeter indicates no voltage, repair lead 506 between GEN WARNING

light and circuit breaker. Refer to page 2-371. Set MASTER switch OFF.

Set INST switch OFF.

Step 2.

Disconnect lead 506 from circuit breaker output. Place red probe in input

side of circuit breaker. Place black probe in output side of circuit breaker.

If multimeter indicates 0 ohms, connect leads 506 to circuit breaker and go

to step 3. If multimeter does not indicate 0 ohms, replace circuit breaker.

2-185