Table 1. Tractor Beacon Light Circuits Troubleshooting Procedures.

TM 9-2320-303-24-1

Table 1. Tractor Beacon Light Circuits Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Tractor Beacon Light Not Operating.

1. Check tractor beacon light 15A If defective, replace 15A fuse (WP

fuse.

0072 00).

2. Remove lamp from tractor

If continuity is indicated, go to

beacon light. Check for

step 3. If no continuity is

continuity between contacts on

indicated, replace tractor beacon

lamp.

light.

3. Disconnect lead 254A from

If no voltage is present, go to step

tractor beacon light. Check for

4. If +12 VDC is present, check for

+12 VDC at lead 254A with

continuity between socket and

beacon light switch in on

ground. If continuity is indicated,

position.

replace tractor beacon light, If

continuity is not indicated, repair

ground lead.

4. Remove tractor beacon light If +12 VDC is present, go to step

15A fuse. Check for +12 VDC 5. If no voltage is present, repair

at lead 420JD fuse connector lead 420JD.

from auxiliary light power bus.

5. Disconnect lead 254 from If +12 VDC is present, go to step

beacon light switch. Check for 6. If no voltage is present, repair

+12 VDC at lead 254.

lead 254.

6. Disconnect lead 254 and lead

If continuity is indicated, go to

254A from switch. Activate

step 7. If no continuity is

switch. Check for continuity

indicated, replace beacon light

between contacts of switch.

switch (WP 0067 00).

7. Disconnect lead 254A from If no voltage is present, repair lead

tractor beacon light. Check for 254A between beacon lights and

+12 VDC at lead 254A.

beacon light switch.

0010 00-29