TM 9-2320-280-10
Table 3-1. Troubleshooting (Cont'd)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. EXCESSIVE EXHAUST SMOKE AFTER ENGINE REACHES NORMAL OPERATING
TEMPERATURE 190°-230°F (88°-110°C)
Step 1. Check oil level for overfilling (Appendix G).
Notify unit maintenance if fluid level is high.
Step 2. Check for restricted air cleaner.
If emergency situation exists, clean air cleaner element (para. 3-15).
If emergency situation does not exist, notify unit maintenance.
Step 3. Other causes.
Notify unit maintenance.
6. ENGINE STARTS BUT MISFIRES, RUNS ROUGH, OR LACKS POWER
Step 1. Check for water in fuel filter by draining.
Drain fuel filter (para. 3-10).
Step 2. Check for restricted air cleaner.
If emergency situation exists, clean air cleaner element (para. 3-15).
If emergency situation does not exist, notify unit maintenance.
Step 3. Other causes.
Notify unit maintenance.
7. ENGINE OVERHEATS ACCORDING TO ENGINE COOLANT TEMPERATURE GAUGE
Step 1. Check to see if fan is running.
If fan is not running, perform emergency fan clutch override
procedure (para. 3-23).
Step 2. Allow engine to cool and check for low coolant level.
Add coolant as necessary (para. 3-9).
Step 3. Check for debris blocking radiator fins.
Remove debris.
Step 4. Check for broken or missing fan belts.
Notify unit maintenance if belts are broken or missing.
Step 5. Other causes.
Notify unit maintenance.
8. LOW ENGINE OIL PRESSURE ACCORDING TO OIL PRESSURE GAUGE
Step 1. Check for low oil level (para. 3-17).
Add oil (Appendix G).
Step 2. Other causes.
Notify unit maintenance.
3-4
