TM 5-4310-368-14
Table 3-2. Troubleshooting Chart for the Operator (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE RUNS ROUGH OR ERR ATICALLY.
Step 1.
Check to see if spark plugs are dirty or damaged.
Notify organizational maintenance.
Step 2.
Check to see if spark plug wires are defective.
Replace (page 4-11).
Step 3.
Check to see if air cleaner restriction indicator is RED.
Notify organizational maintenance.
3. ENGINE OVERHEATS OR BACKFIRES
Step 1.
Check to see if fuel in tank is of poor grade.
Drain (page 3-14).
Step 2.
Check to see if cooling fins are dirty.
Clean.
Step 3.
Check to see if crankcase oil level is low.
Add oil as required (page 3-8).
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