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 until ends of oil seal join 30 ° from cen- terline of crankshaft looking at the flywheel end of the engine as shown in figure 2-106. / Fig+re 2-104. Removing crankshat 011 seal spring. Figure 2-105. I 11s/li11g crankshaft oil sl spring. (3) Install oil seal housing and oil seal housing cap (fig. 2-102) using new gasket, over oil seal and on dowel pins. Secure oil seal housing cap and housing to crankcase with twenty bolts and flat washers (fig. 2-100). Secure bolts with locking wire. 2-70.12 Change 1 Figure 2-106. Con·ect position/or crankshaft oil seal split line beforeinstallina seal retai11e1- Secure oil seal cap to oil seal housing with four nuts and flat washers and secure nuts with locking wire. (4) Install oil seal retainer over oil seal and secure to oil seal cap with three bolts (fig. 2-99) and install locking wire. Install the remaining oil seal retainer on the oil seal housing and secure with three bolts. Install locking wire. (5) Position flywheel on crankshaft and draw flywheel to crankshaft by installing three trans- mission drive spur gear and flywheel bolts and alternately tighten about one turn at a time to draw flywheel on dowel pins without binding (fig. 2-107). Remove bolts and install transmission drive spur gear following the above procedure until both flywheel and transmission drive spur gear are properly alined on dowel pins. (5.1) Position flywheel adapter on crankshaft dowel pins (fig. 2-98.2). Install three flywheel adapter machine bolts 120° apat and tighten bolts alternately until the adapter is seated on the crankshaft. Remove the bolts. Install three new lock plates and nine machine bolts (fig. 2-98.1). Torque tighten bolts to 1000 pound-inches and se- cure bolts by bending lock plate tabs against bolt heads. (5.2) Install lifting eye bolt in flywheel and in· stall flywheel on crankshaft with dowel pin a lined. Install eight machine bolts and torque tighten to 1000 pound-inches. Install locking wire as shown in figure 2-97.l. Remove lifting eye bolt from flywheel.