SYMPTOM INDEX - TM-5-4310-386-14

Unit Preventive Maintenance Checks and Services (PMCS). -cont - TM-5-4310-386-14_57

Table 4-2. Unit Troubleshooting Procedures

TM-5-4310-386-14 Compressor Reciprocating Air: Electric Motor Driven & CFM 175 PSI C & H Model 20-918 Manual
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TM 5-4310-386-14 SYMPTOM INDEX Symptom Page 1. Engine does not turn over ............................................................................................................................4-19 2. Engine fails to start or difficult to start ..........................................................................................................4-19 3. Temperature shutdown activates .................................................................................................................4-20 4. Engine gives poor performance ...................................................................................................................4-21 5. Engine oil pressure zero or too low ..............................................................................................................4-22 6. Engine oil consumption excessive ...............................................................................................................4-23 7. Engine smokes white ...................................................................................................................................4-23 8. Engine smokes blue .....................................................................................................................................4-24 9. Engine smokes black ...................................................................................................................................4-24 10. Engine does not run smoothly ......................................................................................................................4-24 11. Engine overheats or backfires ......................................................................................................................4-25 12. Engine stops suddenly .................................................................................................................................4-25 13. Battery undercharged (ammeter indicates constant discharge) ....................................................................4-26 14. Battery overcharges .....................................................................................................................................4-26 15. Battery charges at idle but discharges under load ........................................................................................4-26 16. Ammeter indicates discharge but battery appears charged ..........................................................................4-26 17. Compressor will not load ..............................................................................................................................4-27 18. Compressor output low ................................................................................................................................4-27 19. Low compressor oil pressure (shutdown) ......................................................................................................4-27 20. Compressor air has oily taste .......................................................................................................................4-28 21. Compressor does not obtain final pressure ..................................................................................................4-28 22. Excessive vibration of unit ...........................................................................................................................4-28 23. Condensate drain system not draining (cold weather only) ...........................................................................4-28 24. Compressor output insufficient .....................................................................................................................4-29 25. Safety valves between individual stages releasing pressure ........................................................................4-29 26. Compressor overheats .................................................................................................................................4-29 27. Compressor speed low .................................................................................................................................4-29 4-18

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