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Table 4-2. Unit Troubleshooting-continued -706880260
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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 -706880262
TM 5-4210-233-14&P-1
4-2. Unit Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM - AERIAL CONTROL PANEL - Continued
6 LEFT OR RIGHT TIP LIGHT WILL NOT ILLUMINATE IN FLOOD OR SPOT SWITCH POSITION
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 12 of 16.)
Step 1. Check bulb(s).
Replace bulb(s) (see para 4-177).
Step 2. Check switch at light for proper operation in both spot (down) and flood (up) positions.
Replace switch (see para 4-177).
Step 3. Check "tip lights" switch at aerial console for proper operation.
Replace switch (see para 4-179).
Step 4. Check wiring from terminal strip under console to tip light for continuity.
NOTE
Each tip light uses two wires in the left side front traveler to
supply +12V.
Replace wire (see para 4-9.4).
Step 5. Refer to "swivel assembly slip ring contact interrupted" troubleshooting procedure.
7 RUNG ALIGNMENT LIGHT WILL NOT ILLUMINATE WHEN RUNGS ARE ALIGNED
(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 11 of 16.)
Step 1. Check bulb.
Replace bulb (see para 4-178).
Step 2. Check switch for proper operation.
Adjust/replace switch (see para 4-179).
Step 3. Check wiring from switch to light for continuity.
Replace wire (see para 4-9.4).
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