TM 5-3895-370-14&P
4-55. THERMOSTAT REPLACEMENT (CONT).
b.
Cleaning/Inspection.
(1)
Clean housing and thermostat by flushing
with water. Dry with lint-free cloth.
(2)
Inspect vent notch on the lip of thermostat
for rust and corrosion. If notch is not open
or damaged, replace thermostat.
(3)
Inspect housing for corrosion and cracks.
Replace if damaged.
WARNING
Perform
thermostat
inspection
in
strict accordance with TM 750-254,
Cooling Systems: Tactical Vehicles,
or death or injury to personnel may
result.
(4)
Inspect operation by placing thermostat in
container
of
water
on
temperature
controlled heater. Thermostat should
begin to open at 181 degrees F (83
degrees C) and fully open at 203 degrees
F (95 degrees C). If thermostat fails
inspection, replace thermostat.
c.
Installation.
(1)
Install thermostat (9) in housing (5).
Ensure that jiggle pins and tang are
installed correctly in their notches.
CAUTION
Ensure gasket is installed properly
with recess toward housing. Failure
to do so may cause coolant system to
leak and damage engine.
(2)
Install gasket (8) in cylinder head (7).
(3)
Install lifting bracket (6) and housing (5)
with three screws (3 and 4). Tighten
screws 18 lb-ft (24 Nm).
(4)
Install hose (2) and tighten clamp (1).
NOTE
Follow-on maintenance:
Install alternator support (para 4-64).
Fill coolant system (para 4-56).
END OF TASK
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