Table 4-2. Unit Troubleshooting-continued -706880220

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

Table 4-2.

Unit Troubleshooting-Continued

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ELECTRICAL SYSTEM-CAB CONTROLS AND INDICATORS-Continued

PUMP SHIFT SWITCH DOES NOT ENGAGE PUMP

(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 3 of 16.)

Step 1. Check switch.

Replace switch (see para 4-9.4).

Step 2. Check pump shift motor for proper operation.

Replace motor (see para 4-9.4).

Step 3. Check pump shift circuit breaker for +12V on both sides.

Replace breaker (see para 4-99).

Step 4. Check wiring for continuity.

Replace wiring (see para 4-9.4).

"PUMP IN GEAR" LIGHT DOES NOT ILLUMINATE

(Refer to Electrical Wiring Diagrams, Appendix H, Sheet 3 of 16.)

Step 1. Check bulb.

Replace bulb (see para 4-95).

Step 2. Check pump shift linkage switch.

Replace switch (see para 4-9.4).

Step 3. Check pump shift switch for proper operation.

Replace switch (see para 4-9.4).

Step 4. Check pump shift circuit breaker for +12V on both sides.

Replace breaker (see para 4-99).

Step 5. Check wiring for continuity.

Replace wire (see para 4-9.4).

4-91