TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download

and injection nozzle and holder assemblies as out- lined above. NOTE The proper installation and positioning of the tube clamps is essential to insure tube life. Install all stationary clamps as shown in figure 3-48 for Model AVDS-1790-2C and AVDS-1790-20 engines, and figure 3-48.1 for Model AVDS-1790-2DR engine. The floating clamps must be installed as shown in figure 2-59 r Model AVDS- 1790-2C and AVDS-1790-20 engines, and figure 2-59.1 r Model AVDS-1790-2DR engine, to insure maximum vibration dampening. Figure 3-33. Deleted. c. Install six fuel injector tube support brackets I (8, fig. 3-48) as shown, on front and rear fan tower cover and secut·e with twelve self-locking nuts (7). d. Install two tube clamps, one under and one over fuel injector tubes, and one plate on top of each clamp at each tube clamps support bracket and secure with venty bolts and self-locking nuts (6). e. Install two tube clamps, one under and one over fuel injector tubes, and one plate on top of each tube clamp support (4) and secure with twenty-four bolts and self-locking nuts (3). ) f Install two floating clamps, one under and one over fuel injector tubes, and one plate under and one over each clamp at location shown i n figure 3-48 and secure with three bolts and self-locking I nuts (I, fig. 3-48) and four bolts and self-Jocking nuts (2). f.1. InstaJl 12 plates and 24 tube clamps (one- tube) on right and left fuel injector tube clamp supports (4, fig. 3-48), and secure with 24 self- . locking bolts (3). Install six fuel injector tube brackets and secure wi th 12 self-locking nuts (7, fig. 3-48.1). Install one plate and two tube clamps (one- tube) and secure with two self-locking nuts and machine bolts (6). Install one plate and two tube clamps (one-tube) and secm·e with one machine screw (5). Install two plates and four tube clamps (one-tube) and secure with four self-locking nuts and machine bolts (4). Install four fuel injector tube plates and eight tu be clamps (three-tube) and secm·e with 16 self-locking nuts and bolts (2). In- stall 14 floating plates and tube clamps (two:tube) and secure with seven self-locking nuts and ma- chine bolts (1). g. Install a new connector gasket on special bolt, insert bolt through fuel tube elbow connector (fig. 3-47) and install a second new connector gasket on bolt. Install bolt with new gaskets and elbow con- nector in nozzle and holder assembly at cylinder No. lR, 6R & 6L. Install eight bolts with new gas- TM 9-2815-220-34 kets and tube tee connectors in the remaining noz- zle and holder assemblies.(except No. IL). I h. Install a new connector gasket on special bolt, insert bolt through fuel tube connector {fig. 3-46) and install a second new connector gasket on bolt. Install bolt with new gasket and connector in noz- zle and holder assembly at cylinder No. lL. i. Position left nozzle fuel retu hose and connect to fuel tube tee elbow connector at cylinder No. 6L (fig. 35). Position right nozzle fuel retu hoses and connect to fuel tube elbow at I cylinder No. lR and 6R. lnstall ten fuel injector nozzle fuel retu hoses to injector nozzle fuel tube tee connectors and fuel tube connector. Install elbow (5) and left fuel retu tube assembly (4) and two loop clamps (6). Instal l elbow (2), right fuel retu tube assembly (I) and two loop clamps (3). 3·178. Cylinder Head Plates, Oil Filler Tube, and Oil Level Indicator Tube a. Install oil level indicator tube (10, fig. 3-44) using new gasket on oil pan al}d secure with three self-locking nuts (9). NOTE Model AVDS-1790-2DR engine installa- tion instructions for the cylinder head plates, oil tiller tube, and oil level indi- cator tube are similar except that the oil level indicator tube is located between cylinder Nos. 2L and 3L. b. Install ten intercylinder shroud plates (8) on cylinder heads and secure with twenty screws and lockwashers (7). Install damper encl cylinder head shroud plate (6) and secure to cylinder head with two screws and lockwashers (5). Install flywheel end cylinder head shroud plate (4) on cylinder head and secure with two screws and lockwashers (3) . Using a new gasket install lower oil filler tube assembly (2), hose and clamps on oil pan. Secure with three screws and three new seal washers (1). Install ten right intercylinder shroud plates, right damper end and flywheel end cy lincler head shroud plates in the same manner as outlined above. 3-179. Front and Rear Shrouds a. Install right rear shroud on engine and secure to flywheel end cylinder head shroud, No. 6R cylin- der baffle and to lower right rear engine shroud with five machine screws (fig. 3-43). Install left rear shroud in the same manner. a.I. Model AVDS-20 and AVDS-1790-2DR en- gines only. Install generator exhaust air outlet tube (3, fig. 3-288) and secure with two machine I screws (6), flat washers (4) and lockwashers (5). Install right rear shroud on engine and secure to flywheel end cylinder head shroud, No. 6R cylinder baffle and to lower right rear engine shroud with Change 2 3·239