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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
27
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).
28
"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
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