Table 3-1. Direct Support Troubleshooting

Chapter 3 DIRECT SUPPORT MAINTENANCE INSTRUCTIONS - TM-10-4320-307-24_254

4. ENGINE CONSUMES EXCESSIVE LUBE OIL (MAY PRO DUCE BLUE SMOKE)

TM-10-4320-307-24 Pump Assembly (Mainline) Diesel Engine Driven 800 GPM NSN 4320-01-193-3430 Manual
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TM 10-4320-307-24 Table 3-1. Direct Support Troubleshooting MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. ENGINE FAILS TO CRANK OR CRANKS AT LOW SPEED Step 1. Check for faulty starter motor. Test and repair faulty starter motor (para 3-22). Step 2. Check for restricted impeller. Remove pump body (para 3-8) and remove foreign objects restricting impeller. 2. ENGINE STARTS BUT RUNS UNEVENLY, STALLS, OR SURGES Step 1. Check adjustment of fuel pump. Adjust fuel pump (para 3-29). Step 2. Check for air in the fuel system. Service fuel pump (para 3-29). Step 3. Check for malfunctioning fuel pump. Replace fuel pump (para 3-29). Step 4. Check for faulty injectors. Remove and test injectors. Repair or replace faulty injectors (para 3-35). Step 5. Check governor control. Replace faulty governor (para 3-13). Step 6. Check overspeed switch. Replace faulty overspeed switch (para 3-14). Step 7. Check HVT valve assembly. Replace faulty HVT valve assembly (para 3-27). 3. ENGINE STOPS RUNNING OR PRODUCES BLACK, WHITE, OR GREY SMOKE Step 1. Check adjustment of fuel pump. Adjust fuel pump (para 3-29). Step 2. Check for faulty injectors. Remove and test injectors. Repair or replace faulty injectors (para 3-35). Step 3. Check for malfunctioning fuel pump. Replace fuel pump (para 3-29). Step 4. Check for air in the fuel system. Service fuel pump (para 3-29). 3-2

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