GASOLINE ENGINE FAILS TO START OR RUNS POORLY

TM 3-4230-209-30&P

2-2

TROUBLESHOOTING (CONT)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

PUMP UNIT (CONT)

1. GASOLINE ENGINE FAILS TO START OR RUNS POORLY (CONT).

Step 3. Check with multimeter for 24 vdc between switch S1-A and ground.

If voltage is not indicated, replace red wire No. 11 between TB1-A and S1-A.

Step 4. Check with multimeter for 24 vdc between switch S1-C and ground when S1 (STOP, RUN, START SWITCH) is placed to START.

If voltage is not indicated, replace S1 switch. Refer to TM 3-4230-209-20&P.

Step 5. Check with multimeter for 24 vdc between TB1-C and ground with S1 (STOP, RUN, START SWITCH) in START.

If voltage is not indicated, replace brown wire No. 13.

Step 6. Check with multimeter for continuity between TB1-C3 and engine disconnect connector plug P1, pin C.

If continuity is not indicated, replace electrical cable from TB1 to engine disconnect.