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TM 5-4320-305-24
Table 2-2. Organizational Maintenance Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. ENGINE STARTS BUT PUMP SUCTION GAGE OR PUMP DISCHARGE GAGE DOES NOT FUNCTION
Step 1. Check that valves are in open position.
Open valves.
Step 2. Gage is damaged.
Replace gage (para 2-16).
5. DENSE EXHAUST SMOKE AFTER WARMUP
Step 1. Shut down engine. With engine level, check oil.
Step 2. Check air cleaner intake restriction indicator for red band indicating blocked air cleaner elements.
If red band appears in air cleaner restriction indicator and rain cap is not blocked and no damage to
system components is found, replace primary and secondary elements (para 2-26).
Step 3. Check air intake piping for damage or obstructions.
Remove obstructions; repair or replace (para 2-26).
Step 4. Check turbocharger for leaking oil seals.
If the air filter and intake ducts are not blocked, the turbocharger oil seals must be replaced. Notify
direct support.
6. ENGINE OVERHEATS
Step 1. Check cooling air ducting for damage and dirt.
Notify direct support.
Step 2. Check V-belts for breaks or cracks. Check belt tension.
Tighten or replace V-belts (para 2-25).
Step 3. Check exhaust system for an obstruction or damage.
Remove obstruction or replace damaged exhaust system components (para 2-28, 2-33, and 2-36).
Step 4. Notify direct support.
2-29
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