TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
Page 604 of 1176
TM 9-2320-361-24-1 0066 00 0066 00-2 MANIFOLD HEATER (UNCOVERED) REPLACEMENT (Contd) CAUTION Cap or plug all openings immediately after disconnecting lines and hoses to prevent contamination. Remove cap or plugs prior to installation. Failure to do so may result in damage to equipment. FUEL NOZZLE REMOVAL 1. Disconnect cable assembly (38) from spark plug (32). 2. Remove spark plug (32) and gasket (31) from elbow (25). Discard gasket (31). 3. Disconnect fuel return tube (7) and fuel inlet tube (10) from adapters (30) and (28). 4. Loosen nut (26) and remove fuel nozzle (27) and nut (26) from elbow (25). 5. Remove two filter disks (29) from fuel nozzle (27). Discard filter disks (29). IGNITION UNIT REMOVAL 1. Remove cable assembly (38) from ignition unit (4). 2. Remove screw (1), lockwasher (2), and ground wire (41) from engine (40) and disconnect wiring harness (39) from ignition unit (4). Discard lockwasher (2). 3. Remove two screws (3), lockwashers (5), clamps (36), and ignition unit (4) from engine (40). Discard lockwashers (5). FUEL FILTER REMOVAL 1. Disconnect wire (11) from wire (12). 2. Remove wiring harness (21) from fuel pump (14). 3. Remove fuel return line (7) from tee (9). 4. Disconnect fuel supply line (35) from fuel filter (18). 5. Remove fuel filter (18), elbow (16), and pipe coupling (15) from fuel pump (14). Discard fuel filter (18). FUEL PUMP REMOVAL 1. Remove fuel inlet tube (10) and elbow (13) from fuel pump (14). 2. Remove two screws (6), lockwashers (8), clamps (20), and fuel pump (14) from water outlet manifold (19). Discard lockwashers (8). ELBOW REMOVAL 1. Loosen clamp (17) on air intake tube (23). 2. Remove four nuts (33), lockwashers (34), clamp (37), elbow (25), and gasket (24) from air intake manifold (22) and air intake tube (23). Discard lockwashers (34) and gasket (24).