ENGINE KNOCKS

Table 2-2. TROUBLESHOOTING (CONTINUED) - TM-9-6115-464-34_41

TM-9-6115-464-34 Generator Set Diesel Engine Driven Tactical Skid Mtd 15 Kw 3 Phase 4 Wire 120/208 and 240/416 Volts Manual
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ARMY TM 9-6115-464-34 AIR FORCE 35C2-3-445-2 NAVY NAVFAC P-8-624-34 Table 2-2. TROUBLESHOOTING (CONTINUED) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 4. Oil pump defective. Repair or replace oil pump (para. 3-39). 9. ENGINE KNOCKS. Step 1. Fuel injection nozzle sticking (figure 3-25). Clean, repair or replace fuel injection nozzles (para. 3-23). Step 2. Fuel injection pump timing advanced (figure 3-21). Adjust fuel injection pump timing (para. 3-22). Step 3. Main bearings worn (figure 3-52). Replace main bearings (para. 3-56). Step 4. Connecting rod bearings or wrist pins worn (figure 3-52). Replace connecting rod bearings or wrist pins (para. 3-56). Step 5. Worn timing gear train (figure 3-44) Replace timing gears (para. 3-51). Step 6. Loose flywheel (figure 3-42). Tighten flywheel mounting hardware (para. 3-51). Step 7. Loose generator coupling. Tighten generator coupling (para. 2-6). Step 8. Incorrect valve adjustment. Check valve adjustment. (Operator/Crew and Unit Maintenance Manual). 10. ENGINE EXHAUST SMOKE IS EXCESSIVE. Step 1. Fuel injection nozzle holders out of adjustment, dirty, or defective (figure 3-25). Clean, adjust, or replace fuel injection nozzles (para. 3-23). Step 2. Worn, broken or stuck piston rings (20, figure 3-52). Replace piston rings (para. 3-56). 2-8

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