TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
Page 454 of 532
TM 9-2815-220-34 candlewick packing in four openings at the crank- case and oil seal housing support parting line as shown in figure 3-313. c. The crankshaft oil seal was installed on the crankshaft during repair (fig. 3-171). Rotate the oil seal on the crankshaft until ends of oil seal join 30 degrees f··m centerline of crankshaft looking at the rear of the engine as shown in figure 3-314. This assists in controlling oil �eepage past the split line of the oil seal. d. Install a new oil seal cap and housing gasket (fig. 3-123) on crankcase assembly and install oil seal cap and housing around cl'ankshaft, over the 'igure 1.31�. Checking accessory drive gcur (I/Id .9tartcr ilcr gear bacHaslt. Figure ..s13. l 11stalling caml(ewick packing between crcL11kca+c und oil seal housi11g support. 3-224 Change 1 oil seal and on locating dowel pins in crankcase assembly and housing. Secure oil seal cap and housing to crankcase asssembly with twenty drilled head bolts (fig. 3-122) and flat washers. Se- cure bolts with locking wire. Secure oil seal cap to oil seal housing with four slotted nuts and flat washe1·s and secure nuts with locking wire. e. Position retainer on oil seal housing and secure with three drilled head bolts (fig. 3-121) and secure bolts with locking wire. Install retainer on oil seal cap and secure with three drilled head bolts and secure bolts with locking wire. f Refer to figure 3-127 and with the aid of an Figtt r" 3.J. Cur,.trl 11ositi1J11 nf c1·a11ks/l(ljr oil sen/ s11lit Ii"" li<'}rini illxtalli11g oil seal rctai 1wr. assistant holding the slotle<l nuts on oppoite side of crankcase, tighten crankcase rod nuts to 640 pound-inches, plus additional torque to aline slot- ted nut with hole in rod. Install fourteen cotter pins to secure nuts. Care should be taken so that rods extend equally on both sides of crankcase and slotted nuts aline with holes in engine crankcase rods in tighten direction. g. Install a new transmission adapter gasket on crankcase assembly. Attach a suitable chain hoist in transmission adapter lifting eye (fig. 3-120) and install transmission adapter on studs and dowel pins in crankcase. Secure transmission adapter to crankcase assembly with f 9ur self-locking nuts (fig. 3-119) and 15 slotted nuts and two slotted nuts and secure slotted nuts with locking wire. NOTE I Model AVDS-1790-2DR engine transmis- sion adapter is not equipped with the two large dowel pins or timing pointer. NOTE The flywheel dowel pins (fig. 3-314) are so located that the flywheel can be installed on the crankshaft flange in only one posi- tion. h. Install eye bolt MS51937-7 in tht·eaded hole provided in fly,01heel (fig. 3-315). Attach a suitable ) )