TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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TM 9-2815-220-34 Table 2·2. Tro+bleshꝏting edures - Continued M a lruneti on Low Power ln\'esligation - Continued 19.4 Low stall speed with black exhaust smoke: (one or th banks). 19.5 Low stall with excess bluish exhaust smoke: (one or th banks) 19.6 Low stall with one bank not firing: 4. Engine Internal Damage 4.l Engine will not rotate, or rotates with binding, grinding or squealing noi: 21 Smoke Generating S}'stem Abnormal Operation 2J .1 Engine fails to produ smoke when ngine is operating d smoke generating system is activated: P�abl • uu h. Fuel injedion pump fuel adjustment im· proper. i. Engine fuel supply pump defective. j. Fuel injection pump fuel pressure rculating valve defective, k. el injection pump timing Improper. a. Vehicle air cleaner inlets blked with debris. b. Air cleaner restriction. c. Air cleaner hose collapsed. d. Turbosupercharger air inlet blked. e. Turbosupercharger deficiency. a. Worn or damaged rings with exceie oil consumption. a. Fuel injection pump malfunction. a. Engine seiied; failed or damaged con- necting r, bearing, piston, gea, etc. b. Engine hydrostatic lk damage. a. Fuel shutff valve closed. b. No generator output. c. Restricted fuel tubo adapters in ex- hust pipes. d. cleaner blower motors not oפrat- g. e. Ruptured fuel hose or tube. f. Fuel solenoid valve(s) not oפrating. g. Restricted fuel hose or tube. CoKlivt a c t ion h. Check adjustment. Refer lo item 14.6, d. Replace injection pump (para 2-21). i. Check pump operation. Refer to item 14.7. Repair or replace required. j. Inspect \'ah·e. Refer item 14.10. I Replace required. k. Check liming (para 2-2\). Relime re· quired. a. Inspect and clean. b. Check air cleaner. (Refer lo DT-7) r- vice required. c. Inspect h. Replace as required. d. Inspect tursupercharger Inlet. Refer to item 11.1, d e. Inspect tursupercharger. Refer to Item 11.1, e & C a. Refer to item L3.7, d al. Refer to OT 1.8. a2. •Replace fuel injection pump (para 2·21). al. Drain oil; inspect oil and filte for metal materials. ✂. •Repair or replace engine necessary. b. •investigate. Refer to DT-12. a. Oפn fuel shutff valve. bl. Bring enne sפed to 1000 rpm momentarily to insure generator OUtt>UI. b2. Troubleshoot generator malfunction c. d. e. f. g. 15. Repla fuel tube assemblies. Refer to פrtinent vehicle technil manual. Replace fuel hose or tube. I Replace solenoid valve(s). Replace fuel hose or tube. Chan 3 2·23