TM-9-2815-220-34 Direct Support Manual for AVDS-1790-2C and AVDS-1790-2D Engines Download
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Figure 2·7S.J. Con11ecti11g or disco1111ecti11g oil cuuler support frame, model AVDS-1790-iD aml A\!DS-1790-2DR engines. (4) Remove three assembled washer bolts (1, fig. 2-74) and disconnect primary fuel filter fuel drain elbow (2). Disconnect manifold heater spark plug electrical lead (3) and wiring haess (4). Re- move two machine screws and self-locking nuts (5) and remove ignition unit (6) with clamps (7). Re- move two machine screws and self-locking nuts (8) and disconnect wiring haess bracket (9). (5) Disconnect fuel filter constant bleed hose (fig. 2-75) from bulk head union. (6) Disconnect manifold air heater fuel inlet hose from elbow (1, fig. 2-76). Disconnect manifold air heater fuel retu tube (2) and remove electri- cal lead (3). Remove six machine screws and self- locking nuts (4) and one screw and self-locking nut (5). Remove oil cooler support frame (6). (7) Loosen four hose clamps (1, fig. 2-77). Re- move machine screw and self-locking nut (2) at- taching flame heater fuel inlet line cushioned clamp (3) to loop clamp. Cut locking wire (4) and remove two body bolts (5) intermediate drain tube (6) front drain tube (7) and hoses (8) as an assembly. I Remove and discard four copper gaskets (9) ( one under each bolt head and one between each drain tube and cylinder head). l Assembled washer boll 2 Elbow 3 Electrical lead 4 Wiring haess 5 Machine screw and self· locking nut TM -2815-220-34 TA265643I 6 Ignition unit 7 Clamp 8 Machine screw and self- locking nut 9 Bracket Figure 2·74. c,m11ecti11g 0 <lisco1111ecti11g oil couler s11pµort Jime. Figure ·75. Re111uvi11g o.- i11stalli11gfuel .filte1· cu11+laul bltd hose. (8) Remove three plain nuts and lockwashers (1, fig. 2-78). Remove four self-locking nuts (2) and loosen manifold flange (3). Remove cylinder flange (4) from cylinder head studs and 11.take manifold tube (5) from intake manifold (6). Remove cylinder flange gasket (7) and intake m � nifold tube pr� formed packing, Oat washer, spnng washer, . am- I fold flange (3) and cylinder flange (4), from take Change 3 29