TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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u I Item No. 13. 14. 15. 16. 17. 18. 19. 20. 21. Mal/++co+ Abnormal Oil Conditions Tro11bleshꝏtlng oced1tres-Contl1111ed Contents for table 2·2 13.1 Low oil pressure-temperature normal: 13. 2 Low oil preure: 13.3 High'oil temperature: 13.4 Low oil level: 13.S High oil level: 13.6 OU diluted with fuel: l 3.7 Excessive oil consumption: J 3.8 Excessive crankcase blowby: 13.9 Ccncmtor oil pressure abnormal: (AVDS·l 790·2C nd AVDS·l 790·2CA) fuel System Abnormal Conditions 14.1 Air In system: 14.2 Water contaminated Cuel: 14.3 Accelerator and throttle linkage deficiencies: 14.4 ln·tnnk fuel pump deficiencies: 14.S Fuel filter restriction: 14.6 Fuel injection pump deficiencies: 14.7 Engine fuel supply pump defecti�·e: l 4.8 Fuel injector nozzle defective: 14.9 fuel injector tube high pressure fuel leakage: 14.10 Fuel injection pump pressure regulating valve fuel return valve defective: l 4. I I Engine fuel return restriction: 14.12 Fue l retu check valve defective: 14.13 Automatic water drain system inoperative: 14.14 Deleted Generator Abnormal Operation IS.I Not charging: 1 S.2 Undercharging: I S.3 Overcharging: IS.4 Discharng: IS.S Erratic charging: Intake Manifold Heater Abnormal Operation 16.l Heater inoperative: Vehicle Air Cleaner Blower Inoperative 17 .1 Motor inoperative: Engine Time Tornlizing Meter 18.1 Totalizing meter inoperative: Low Power Investigation 19.l Preliminary Investigation: 19.2 Power verification: 19.3 Low stall with both banks firing, and normal smoke: 19.4 Low stall sפed with black exhaust smoke: J 9.S Low staU with excess bluish exhaust smoke: 19.6 Low stall with one bank not firing: Engine Internal Damage 20.l Engine ll no( rotate, or rotates with binding, grinding or squealing noise: Smoke Generating System Abnormal Operation TM 9-2815-220-34 21.1 Engine fails to produce smoke when enne is operating and smoke generating system is activated. 21.2 Smoke produced Is of poor qualHy. 21.3 Smoke produd when smoke generating system is not activated. Mntfuncrion l. Engine Fails to Crank l. l Engine will not crank: (No response when starter switch ls pressed.) Tab 1·1. Tro11bllrooti11g ocedures Probabl e cause a. Master switch "OFr." b. Transmission shift selector not in "neutral/park" position. Correclive aclion a. Turn switch "ON." b. Pla shift selector In "neutral/park" position. Change 3 2·11