Table 4-2. Unit Troubleshooting

TM 5-4930-233-14

TM 4930-14/1

Table 4-2. Unit Troubleshooting

ITEM

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

ENGINE FAILS TO TURN OVER

Step 1. Check for weak or dead batteries (para 4-18).

Charge or replace batteries (para 4-18).

Step 2. Check for loose, broken or damage on battery cables.

Replace or repair cables (para 4-18).

Step 3. Check for defective starter (para 4-23).

Replace starter (para 4-23).

Step 4. Test wiring harness (para 4-25).

Replace or repair wiring harness (para 4-25).

Step 5. Test starter/ignition switch (para 4-26).

Replace switch (para 4-26).

Step 6. Test cold start switch (para 4-26).

Replace switch (para 4-26).

ENGINE RUNS ROUGH

Step 1. Check fuel for contamination.

Clean and drain fuel tank (para 4-16).

Step 2. Troubleshoot engine (TM 9-2805-262-14).

BATTERIES NOT CHARGING OR HOLDING CHARGE

Step 1. Check for weak batteries (para 4-18).

Replace batteries (para 4-18).

Step 2. Check for missing or loose alternator belt (para 4-22).

Replace or adjust belt (para 4-22).

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