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Table 4-2. Unit Troubleshooting-continued -706880251
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TM-5-4210-233-14-P-1 Firfighting Truck 100 Ft. Aerial Ladder 1000 GPM Manual
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Table 4-2. Unit Troubleshooting-continued -706880253
TM 5-4210-233-14&P-1
Table 4-2. Unit Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM - PUMP PANEL - Continued
5
OUTRIGGER ILLUMINATION LIGHTS WILL NOT LIGHT
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 7 of 16.)
Step 1. Check bulb.
Replace bulb (see para 4-176).
Step 2. Check jack flashers and outrigger control compartment illumination for proper operation.
If jack flashers and outrigger control compartment illuminations are not functioning properly
refer to "+12 volts not present at aerial master buss" troubleshooting procedure.
If jack flashers and aerial control compartment lights are functioning properly, go on
to Step 3.
Step 3. Check wiring for continuity.
Replace wire (see para 4-9.4).
6
OUTRIGGER JACK FLASHER DOES NOT ILLUMINATE OR FLASH
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 7 of 16.)
Step 1. Check bulb.
Replace bulb (see para 4-175).
Step 2. Check flasher unit.
Replace flasher unit (see para 4-9.4).
Step 3. Check for +12V at aerial circuit breaker #1.
Replace breaker (see para 4-99).
Step 4. Check wiring for continuity.
Replace wire (see para 4-9.4).
Step 5. Check for +12V at aerial master buss.
Refer to "+12 volts not present at aerial master buss" troubleshooting procedure.
4-123

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