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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 Fig11 re i·9G. I 11stalli11g uiljiltt1· de111c11ls. 2-32. Flywheel and Crankshaſt 011 Seal a. Removal. (1) Tu flywheel using splined wrench, Part I No. 10882747 (fig. 22) until lifting eye bolt hole (fig. 2-97J is located on top. Straighten tabs of lock plates and remove nine bolts and three lock plates attaching transmission drive spur gear and flywheel to crankshaft. Discard lock plates. (J.l) Position improvised engine turning tool (1, fig. 2-42.1) on power takeoff coupling and secure with four 7/16-20UNF x 1-1/2 inch machine bolts (2). Install a l 114-inch socket (3) and tu crankshaft until flywheel lifting eye bolt hole is on top. Install lifting eye bolt, Part No. MS51937-7 (fig. 2-97.1). Install a suitable chain fall and attach to the lifting eye bolt. Cut locking wire, remove eight machine bolts and remove flywheel (fig. 2-97.l). Remove lift- ing eye bolt from flywheel. Remove improvised en· gine tuing tool. (2) Istall three of the nine bolts (fig. 2-97) into puller screw holes and remove transmission drive spur gear from crankshaft dowel pins by alter- nately tightening the three bolts. (3) Install three bolts (fig. 2-98) from transmis- sion d1ive spur gear and flywheel, into puller holes. 2-70.8 Change 2 Fig1+·t i-97. Hr11111ri11y t1·1111+111i.�i1111 drive spur gear, model A'v'DS-IJ.J('u.11/ AVDS-1190.�D engines. Alternately tighten bolts until flywheel is far enough from crankshaft dowel pins to permit in- stallation of lifting eye bolt. Install lifting eye bolt, Part No. MS51937-7 and remove flywheel. Remove lifting eye bolt from flywheel. (3.1) Straighten tabs of three lock plates (fig. 2-98.1) and remove nine machine bolts securing flywheel adapter to crankshaft. Discard lock plates. Install three of the machine bolts (removed above) in the flywheel adapter puller screw holes (fig. 2-98.2). Alternately lighten the bolts and pull the adapter from the dowel pins. Remove machine screws from adapter.