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 1 Electricnl lead 2 Wiring harness elertrical lead 3 Machine screw 4 Ignition unit 5 Elbow 6 Fuel l'etu lube 7 Nut and wnsher 8 Manifold heater 9 Gasket Figure f.J 19. Removing or installing manifold heater or ig11itio11 unit. tube (6) and manifold air heater fuel inlet hose to elbow (6). Connect electrical lead (1) at spark plug. (2) Ignition Unit. (a) Install ignition unit (4) in clamps and tighten two machine screws and self-locking nuts (3). (b) Connect manifold heater electrical lead (1) and wiring haess electrical lead (2). 2-43. Manifold Heater Fuel Filter or Solenoid Valves a. Removal. (1) Cut locking wire and remove sediment bowl (1, fig. 2-120). Remove and discard preformed pack· ing (2) and clement (3). Install new element, new preformed packing and sediment bowl. Install lock- ing wire. (2) Disconnect solenoid valve electrical lead . Disconnect manifold heater tubes (4). Disconnect fuel filter inlet tube (5). Remove two assembled washer bolts (6) and two screws, lockwashers and flat washers (7) and remove fuel filter and solenoid valve as an assembly. Remove fuel solenoid valve outlet elbow (8) and tee (9). Re move fuel filter inlet connector (I 0) and nipple ( 11) from solenoid valve and/or filter. (3) Disconnect fuel solenoid outlet tube (1, fig. 2-121) and fuel solenoid inlet tubes (2). Remove two assembled washer bolts (3) and remove solenoid valve (4) and associated fittings from bracket (5). (4) Remove the fuel solenoid inlet coupling, elbow and tee (6) an assembly. Remove the fuel solenoid outlet e l bow, check valve and elbow (7) as an ass embly. 2-78 Change 3 . ,�c 2 1 Filter bowl 2 Preformed packing 3 Filler element 4 Manifold heater tube 5 Fuel filter inlet tube 11 Nipple 14 I , @) � ' l ; 3 TAIZ6117 6 Assembled washer bolt 7 Screws and washers 8 Outlet elbow 9 Outlet tee 10 Fuel filter inlet connector 12 Manifold heater fuel filter 13 Manifold healer fuel inlet solenoid valve 14 Filter head Fil.re -JO. Remcwing or inslfing manifold heater fuel inlet solenoid valve or fuel filterilter element. b. Installation. NOTE If solenoid valves are equipped with felt line filters in the inlet and outlet open· ings, they must be removed and dis· carded. Felt line filters are not required. (1) Install nipple (11, fig. 2-120) in fuel solenoid "IN" opening anfor filter "OUT" opening. Install fuel filter inlet connector (10) and solenoid outlet elbow (8) and tee (9). Install assembled fuel filter (12) and assembled solenoid valve (13) on brackets and secure with two screws, lockwashers and flat washers (7) and two assembled washer bolts (6). Connect fuel filter inlet tube (6) and manifold heat er tubes (4). . . (2) Install elbow, check valve and elbow (7, fig. 2-121) in solenoi d valve "O" opening . Install coupling, elbow and tee (6) in solenoid valve "IN" opening, InstaU assembled f uel solenoid valve (4) and secure to bracket (5) with two assembled washer. bolts (3) and connect fuel solenoid inlet tubes (2) and solenoid outlet tube (l ). Connect electrical l ead.