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

I TM 9-2815-220-34 (6) Remove four self-locking nuts, flat washers and bolts (1, fig. 2-128), an d four self-locking nuts, flat washers and machine bolts (2); Remove exhaust elbow (3), remove and discard two gaskets. Remove twelve self-locking nuts and flat washers (4), and remove exhaust manifold (5). Re mov e and discard three gask e ts . (7) Remove four sel f - l k i ng nuts, flat washers and machine bo1Ls(6). Remove four self-locking nuts, flat washers, and machine bolts attaching exhaust elbow (7) to turbosupercharger. Remove exhaust elbow and remove and discard two gaskets. Remove twelve self-lking nuts and flat washers (8) and remove exhaust manifold (9). Remove and discard three gaskets. � ----   ____ � ,- - -11 - ------- -- .  TA265655 I I Nut, \\'3Sher and boll 2 Nul, washer and bolt 4 Sclr-locking nu1 3nd na1 washer 7 exhaust elbow cylinder 4 R, 5 R, 6R 8 Self-Jocking nut and nat washer 3 Exhaust elbow cylinder IR, 2R, JR 5 Exhaus1 1nm1 if old lind�r I R, 2 R, 3 R 6 Nul, washer and boll 9 Exhaust manifold cylinder 4 R, 5 R, 6R Pigur� £-128. Re11w11i11g 01· i11stalli11y uliaLtst 1111111i/ultls 011d elbows. b. l nstallation. (1) Install exhaust manifold (9, fig, 2-128) on cylinder Nos. 4R, SR, 6R using new gaskets and secure to cylinders with twelve self-locking nuts and flat washers (8). Install exhaust elbow (7) using new gaskets, and secure to the exhaust man- ifold with four self-locking nuts, flat washers and bolts (6) and to turbosupercharger with four self- locking nuls, flat washers and bolts. (2) stal l exhaust manifold (S) on cylinders Nos. lR, 2R, 3R uging new gaskets and secure to cylinders with twelve self - lo ck ing nuts and flat washers (4),t I nsta ll exhaust elbow (3) using new gaskets and secure to the exhaust manifold with four self-locking nuts, Oat washers and machine bolts (1) and to turbosupercharger with four self- locking nuts, flat washers and machine bolts (2). ( 3 ) Deleted (4) Install two sets of retaining straps (7, fig 2-127) and secure to oil cooler frame support wjth two machine bolts and self-locking nuts (6). Install gasket (5), restrictor ( 4), gasket (S) and tube tee (3)(in that order) on rea fan drive housing. Install 2·80.2 Change 3 two bolts a nd lockwashe (2) securing parts to housing. Position hose between breather tube and tube tee and tighten two hose clamps (1 ). (5) Install right rear center shroud (8, fig. 2-126) and tube cross (9) as a unit, and secure with one machine screw and lockwasher (. Install left rear center shroud (4), bulkhea d adapter elbow (6) and solenoid valve assembly (6) as a unit, and se- cure with two machine screws and lock washers (3). (6) Connect fuel retu tubes (2) and right and left turbosupercha rger oil hoses (1). (7) Position crankcase breather tube (6, fig. 2-125) a11d hose through right rear center shroud and on breather tube tee and tighten hose clamp (5). Conne ct manifold heater fuel return hose (4) and turbosupercharger oil hose (3). Connect fuel retu tubes (2) and fuel return hose (I). (7.1) On Models AVDl790-2C and AVDS-1790-20, instal l two new smoke generating tubes and connect tube nuts to tee (fig. 2-125.l ). Secure tube adapters to exhaust manifolds and tighten tube nuts. Secure two clamp pads and retain ing sl'faps with two capscrews and self-locking nuts.