TM 55-2210-223-12
TO 45A2-2-14-41
Table 4-2. Unit Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
LIGHTS
12. HEADLIGHTS DO NOT OPERATE WITH HEADLIGHT SWITCH IN THE ON POSITION
Step 1. Check for a defective lamp.
Replace defective lamp (para 4-34).
Step 2. Check for a loose connection or broken wire.
Tighten loose connection or repair a broken wire.
Step 3. Use a multimeter and check for a defective switch.
Replace defective switch (para 4-29).
13. CAB, ENGINE COMPARTMENT, AND STEP LIGHTS DO NOT OPERATE WITH SWITCH IN THE ON POSITION
Step 1. Check each light for a defective lamp.
Replace defective lamp (para 4-35).
Step 2. Check each light for a loose connection or a broken wire.
Tighten loose connection or repair broken wire.
Step 3. Use a multimeter and check each light for a defective switch.
Replace defective switch (para 4-29).
Section V. UNIT MAINTENANCE PROCEDURES
4-9 GENERAL.
This section provides instructions for inspection, service, replacement, or repair of assemblies and subassemblies of the
locomotive. Each maintenance procedure contains step-by-step instructions for the task to be performed. Where
necessary, a final test will be performed on the serviced or repaired item to assure minimum performance. Personnel
required are listed only if the task requires more than one.
4-18
