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TM 5-4210-230-14&P-1
VEHICLE MAINTENANCE
COOLING SYSTEM FILLING
(Gasoline Engine)
To eliminate air being trapped within the engine or
heater, the following procedure should be followed when filling
the engine coolant system.
1.
Fill cooling system until coolant reaches bottom of
radiator filler opening. Install radiator cap.
2.
Set parking brake and start engine.
3.
Allow engine to operate at a fast idle until engine
reaches its normal operating temperature.
4.
After engine reaches its normal operating temperature,
trapped air will be expelled from system.
5.
With engine still running, add sufficient coolant to bring
level to approximately one inch below bottom of filler
neck.
RADIATOR SHUTTERS
Automatic radiator shutters provide increased engine
efficiency and economy as well as improved heater
performance.
SHUTTERSTAT (With Air Filter)
The shutterstat, in conjunction with the power air
cylinder, air filter and air pressure operate or close the shutter
assembly as engine temperature decreases. Tension springs
within the shutter assembly open the shutter as engine A
temperature increases. The air filter element in the shutterstat
should be removed and cleaned at least once a year.
THERMOSTAT
Your new truck is equipped at the factory with a high
temperature thermostat.
Permanent type antifreeze must be used with high
temperature thermostats.
WATER FILTER
TO REPLACE:
1.
Remove
water
filter
assembly
by
turning
counterclockwise. Clean filter mounting pad.
2.
Lubricate new gasket and place element in position on
center tube. Hand tighten 1/2 to 3/4 turn after gasket
first contacts base of mounting pad. Do not
overtighten.
3.
Start engine and check for leaks.
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