Table 4-2. Unit Troubleshooting-continued -706880249

TM 5-4210-233-14&P-1

Table 4-2. Unit Troubleshooting - Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ELECTRICAL SYSTEM - PUMP PANEL - Continued

RELIEF VALVE INDICATOR LIGHTS DO NOT ILLUMINATE

(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 6 of 16.)

Step 1. Check bulb.

Replace bulb (see para 4-21).

Step 2. Check switch on valve.

Replace switch (see para 4-35).

Step 3. Check wiring for continuity.

Replace wire (see para 4-9.4).

Step 4. Check pump shift circuit for proper operation.

Refer to "pump shift switch does not engage pump" troubleshooting procedure.

ELECTRICAL SYSTEM - OUTRIGGER CONTROL PANEL

OUTRIGGER DOWN LIGHT DOES NOT ILLUMINATE WHEN OUTRIGGER IS DOWN

(Refer to Electrical Wiring Diagrams, Appendix H, Sheets 3 and 9 of 16.)

Step 1. Check bulb.

Replace bulb (see para 4-178).

Step 2. Check outrigger down limit switches.

Replace switch (see para 4-196).

Step 3. Check for +12V at breaker #1 on ignition accessory buss.

Replace breaker (see para 4-99).

Step 4. Check wiring for continuity.

Replace wire (see para 4-9.4).

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