TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download

I I TM 9-2815·220·34 Malrunct l on Engine Fails to Crank - Continued 1.2 1.3 2. 2.1 3. 3.1 2·12 Starter engages but engine dœs not crank: (Audible solenoid action or staer gear engagement.) Starr drive spins, but. engine d not crank: Engine Cranks Tꝏ Slow Cranking speed tꝏ slow for starting: (below Z m) Engine Fails To Start At Normal Cranking Speed Cylinders not firing: (Insufficient. fuel or inmplete combustion.) Change 2 Table 2·2. Troubleshooting ocedures - Cntin+ed Prob•bl e cau c. Transmiss ion shift linkage a nd "neutral/park" pition adjustment improper. d. w voltage protection module operat· ing or batteries discharged. elow 12 volts) NOTE Low voltage protection mod· ule prevents slnrter opcrntion clow 12 volts. e. Electrical staing circuit defective. a. Starter engagement mbly damaged. b. Starter drive gear damaged. c. Starter failure. d. Engine "hydrostatic lk". e. Engine id internally. f. Transmission "lked-up". a. Starter clutch slipping or engagement mbly damaged. · b. Engine starter drive gear damaged (teeth milled). a. Batteries partially diharged. b. Incorrect seasonal grade of oil. Applies in cold weather. a. Out of fuel. b. Air in fuel system. c. Cylinders tꝏ cold. Applies in cold weather. Corrcc livt a c t io n cl. Adjust transmission shift linkage. Refer to pertinent vehicle thnical manual. c2. Adjust "neutral/park" switch for full travel. Refer to pertinent vehicle technical manual. dl. Check panel lights for "ON" and bat· tery indicator. Rcfcr t  13.1 and 13.2 . Check battery ndition, le, broken or corred cables and terminals. UeJer to peinent vehicle technical manual. d3. Recharge or replace batteries; or "slave" start engine. Repair or replace defective cables and ter· minals. d4. Check generator operation aJter start- ing engine. Refer lo  13.3. el. Check circuits, switches and connec- to. Refer  pertinent vehicle tech- nical manual. e2. *Replace starter low voltage protec· tive module (para 25) al. •Remove starter and Inspect aembly (para 2-18) Refer to pertinent starter manual. Repair or repla starter. a2. •Install starter ambly (para 2-18). bl. •Remove starter and inspect engine starter driven gear (para 2-18). b2. •Replace starter iven gear (para 2-18). c. •Replace starter asmbly (pa 2-18). dl. Invtigate. Refer lo DT 12. . •Replace engine. Refer to pertinent vehicle technical manual. e. •Repair and replace  required. (cm 4). fl. Check transmission. Refer to pertinent vehicle technical manual. f2. •Replace transmission. Refer to perti- nent vehicle technical manual. a. •Replace starter assembly (para 2-18). bl. •Remove starter and inspect engine drive gear (para 2-18). b2. •Replace engine ive gear (para 3·31), and install starter (para 2-18). a. Check battery condition. Refer to  13.1 and 13.2. b. Drain and refill with proper oil. Refer to pertinent vehicle lubrication order. a. Refuel. b. Bleed and purge system. (item 14.1.) cl. Operate engine intake manifold healer to assist in starting. c2. If engine dœs not start, check heater operation. Refer to OT 14.