TM 9-2320-361-20 3-30. MANIFOLD HEATER (COVERED) REPLACEMENT This task covers: a. Cover Removal g. Fuel Filter Installation b. Ignition Unit Removal h. Elbow Installation c. Fuel Nozzle Removal i. Fuel Pump Installation d. Fuel Pump Removal j. Fuel Nozzle Installation e. Elbow Removal k. Ignition Unit Installation f. Fuel Filter Removal l. Cover Installation INITIAL SETUP: APPLICABLE MODELS All MATERIALS/PARTS Two manifold heater fuel filters Eight lockwashers Two gaskets Two filters REFERENCES (TM) TM 9-2320-361-10 TM 9-2320-361-20P EQUIPMENT CONDITION Parking brake set (TM 9-2320-361-10). Hood raised and secured (TM 9-2320-361-10). Battery ground cable disconnected (para. 4-48). Breather tube removed (para. 3-6). a. Cover Removal Remove four screws (1), clamp (5), and fuel pump cover (2) from bracket (11). b. Ignition Unit Removal 1. Remove screw (10), lockwasher (9), and wiring harness ground wire (8) from bracket (11). Discard lockwasher (9). 2. Disconnect wire (7) from wiring harness (6). 3. Disconnect wiring harness (6) from ignition unit (4) and fuel pump (12). 4. Disconnect cable assembly (23) from ignition unit (4) and spark plug (15). 5. Remove two clamp assemblies (3) and ignition unit (4) from bracket (11). c. Fuel Nozzle Removal 1. Remove spark plug (15) and gasket (14) from elbow (13). Discard gasket (14). 2. Disconnect fuel return tube (21) and fuel inlet tube (22) from adapters (20) and (16). 3. Remove adapters (20) and (16) from fuel nozzle (19). 4. Loosen nut (18) and remove fuel nozzle (19) and nut (18) from elbow (13). 5. Remove two filters (17) from fuel nozzle (19). Discard filters (17). 3-60