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 1061 of 1207
TM 9-2320-361-20
14-36. SECONDARY HEATER AND DUCT REPLACEMENT
This task covers:
a. Heater, Exhaust Tube, and Guard Removal
c. Duct Installation
b. Duct Removal
d. Heater, Exhaust Tube, and Guard Installation
INITIAL SETUP:
APPLICABLE MODELS
REFERENCES (TM)
M109A3 and M185A3
TM 9-2320-361-10
MATERIALS/PARTS
Twelve lockwashers
O-ring
Two gaskets
TM 9-2320-361-20P
EQUIPMENT CONDITION
Parking brake set (TM 9-2320-361-10).
a. Heater, Exhaust Tube, and Guard Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Disconnect heater harness (7) from heater (3).
Remove clamp (10) and duct (13) from adapter (8).
Remove eight screws (9) and adapter (8) from heater (3).
Remove two clamps (2), heater (3), washer (11), and O-ring (12) from support (14). Discard
O-ring (12).
Remove screws (16) and (22), lockwasher (23), washer (24), and guard (21) from exhaust tube (20),
tube adapter (27), and support (14). Discard lockwasher (23).
Remove clamp (26) from exhaust tube (20) and tube adapter (27).
Remove three screws (22), lockwashers (23), tube adapter (27), and gasket (28) from van wall (29).
Discard lockwashers (23) and gasket (28).
Remove four screws (16), gasket (15), and exhaust tube (20) from support (14). Discard gasket (15).
Remove two screws (6), lockwashers (25), washers (5), two screws (17), lockwashers (18),
washers (19), and support (14) from bracket (1). Discard lockwashers (18) and (25).
Remove four screws (6), lockwashers (25), three flat washers (5), clamp (4), and bracket (1) from
van wall (29). Discard lockwashers (25).
14-56
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