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 407 of 1207
3-46.
TM 9-2320-361-20
This task covers:
a. Removal
c. Installation
b. Testing
INITIAL SETUP:
APPLICABLE MODELS
All
MATERIALS/PARTS
Two
lockwashers
Gasket
Seal
REFERENCES (TM)
TM 9-2320-361-10
TM 9-2320-361-20P
EQUIPMENT CONDITION
Ž
Parking brake set (TM 9-2320-361-10).
●
Hood raised and secured (TM 9-2320-361-10).
• Upper radiator hose removed (para. 3-43).
GENERAL SAFETY INSTRUCTIONS
Use caution when testing thermostat. Hot water
may cause injury to personnel.
NOTE
Have drainage container ready to catch coolant.
1. Loosen two clamps (4) on hose (5).
2. Remove two screws (3), lockwashers (2), housing (l), and gasket (8) from intake manifold (7) and
hose (5). Discard lockwashers (2) and gasket (8).
NOTE
Observe position of seal in housing.
3. Remove thermostat (10) and seal (9) from housing (l). Discard seal (9).
4. Remove hose (5) and two clamps (4) from water pump (6).
Use caution when testing thermostat, hot water may cause injury
to personnel.
NOTE
Do not let thermostat touch container sides.
1. Place thermostat (10) in container of water heated to 185°F (85°C).
2. Observe thermostat (10). If thermostat fails to open, replace thermostat (10).
1. Install hose (5) and two clamps (4) on water pump (6). Do not tighten clamps (4).
NOTE
New seal must be pressed into same position as old seal.
2. Install new seal (9) on housing (1) by tapping into place.
3. Install thermostat (10) on housing (l).
4. Install new gasket (8) and housing (1) on hose (5) and intake manifold (7) with two new lock-
washers (2) and screws (3).
5. Tighten two clamps (4) on hose (5).
3-104
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