COOLING SYSTEM FILLING
To eliminate air being trapped within the engine or
heater, the following procedure should be followed when filling
the engine coolant system.
Fill cooling system until coolant reaches bottom of
radiator filler opening. Install radiator cap.
Set parking brake and start engine.
Allow engine to operate at a fast idle until engine
reaches its normal operating temperature.
After engine reaches its normal operating temperature,
trapped air will be expelled from system.
With engine still running, add sufficient coolant to bring
level to approximately one inch below bottom of filler
Automatic radiator shutters provide increased engine
efficiency and economy as well as improved heater
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.
Your new truck is equipped at the factory with a high
Permanent type antifreeze must be used with high
counterclockwise. Clean filter mounting pad.
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
Start engine and check for leaks.