TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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) chain hoist to eye bolt and aline dowel pin holes in flywheel with dowel pins in crankshaft nange. Turn crankshaft as necessary to aline dowel pins with holes in flywheel. Position alined flywheel against flange on crankshaft and install three 9/16 x 1-3/4 in. flywheel mounting bolls and alteately tighten bolts to draw flywheel toward flange on crankshaft. These mounting bolts are also used to secure transmi ssion drive spur gear to the crankshaft. NOTE Eye boll 851937-7 must be removed from flywheel, before y•heel is drawn tight against flange on crankshaſt, to permit flywheel to clear transmission adapter lifting eye. i. Remove Ii fling eye bolt and continue to tighten three bolts until flywheel is tight against flange, then remove the bolls. F'igure . /S. lnstallingjlywlteel usi +0 eye bolt model AVDS.J790-2C tu1d AVDS./790-20 engins. TM 9-2815-220-34 j. Install transmission drive spur gear on dowel pins (fig. 3-315) which protrude through flywheel and install three new lock plates (fig. 3-l l 7) and secure lock plates, spur gem· and flywheel to crankshaft with nine bolts. Alteately tighten bolts to 1000 pound-inches and secure bolts by bending tabs on three lock plates. k. Check flywheel runoul as shown in figure 3-316 using dial indicator. Runout should not ex- ceed 0.0 15-inch. Replace flywheel if runout exceeds this limit. k. l. Jnslnll preformed packing. Install trans- 1 mission hous i ng adapter (fig. 3-J I 8.4) and two capscrews and self-locking nuts, and 17 capscrews and Jockwashers. Install flywheel adapter and sec u re with nine mnchfoc bolts and new lock plates (lig. 3-118.2). Torque machine bolts to 1000 pound-inches and bend Jock plate tabs against machine bolt head nats. k. 2. Install ywhcel using eye bolt, part number MS51937-7, (fig. 3-118.1) and secure with eight ma- 'igure 3-316. Checking /ly1d1eel nwout using dial inicator, model AVDS-1790-2C and AV DS-1790-20 engines. Change 3 3-65