TM-9-2320-361-20
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
OCTOBER 1991
TM-9-2320-361-20 - Page 363 of 1207
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
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