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 .. TA05556� - ' J � l High oil pressure transmitter 2 Auxilia generator high oil 4 Tee 5 Bushing pressure switch · 3 Pipe elbow 6 Pi פelbow 7 Nipple Figurn 3-97.1. Removillg 01· instrtllin q press1u� tm11s111itlN ult({ vressure switclr, model A\ ' f)S. /7!+1-DR Cllfli 11e. be taken to prevent damage to the oil pan and crankcase parting line machining sut·faces on the damper and oil filter hous- ing. e. Remove damper and oil filter housing and re- move and discard five crankcase to housing trans- fer tube, preformed packings (fig. 3-99). 3-28. Cylinder Air Deflectors, Cylin_ der As- semblies, Pistons and Pins a. Remove twelve self-Jocking nuts, capscrews and spacers (fig. 3-100) atlaching cylinder air de- neclors t o cylinder asRemblies. Remoye the ur end cylinder air deflectors located at cylinder Nos. lR, J L, 6 R and 6L. The ten lower cylinder deflector retaining straps are also secured by bolts (fig. 3-101). b. Remove five volts (fig. 3-101) that attach the five lower cylinder deflector traps on each side of engine. Remove the ten lower cylinder straps and the ten lower cylinder deflector retainer straps (fig. 3-100) and remove all cylinder deflectors (fig. 3-101) from cylinder assemblies. NOTE Before removing cylinder assemblies, it will be necessary to check the breaking 3-42 Change 1 torque of the 14 nut attaching each cy- linder assembly to the crankcase assem- bly. This check is necessary Lo determine whether cylinder mounting nan� studs have stretched. All stretched studs must be replaced. · c. Check breaking torque of the 14 nuts (fig. 3-102) securing cylinder assembly to crankcase assembly using box wrench Part No. 8761562 in colllbination with a torque wrench. When torque required to break a nut loose is less Lhan GOO pound inches, l'emove nul, apply anLiseize compound to stud, in- stall nut and tighten to a torque of 600 to 660 pound inches. When nut docs not tighten to the recom- mended torque, stud is stretching and must be replaced. Mark stud for replacement. Refer to par- agraph 3-3&l for instruction on replacement of studs. d. After checking the breaking torque, remove ull nuts (fig. 3-103) except one on each side of cylin- der mounting flange. hc remaining two nuts are removed after piston has been positioned for cylin- det· removal (g below). NOTE Before removing each cylinde1· assembly, the crankshaft must be turned lo position ) )