6
RELIEVING RADIATOR PRESSURE
RELIEVING RADIATOR PRESSURERELIEVING RADIATOR PRESSURE
RELIEVING RADIATOR PRESSURE
WARNING:
WARNING:WARNING:
WARNING:
Coolant
Coolant Coolant
Coolant in the vehicle cooling system may be extremely hot and under great
in the vehicle cooling system may be extremely hot and under great in the vehicle cooling system may be extremely hot and under great
in the vehicle cooling system may be extremely hot and under great
pressure. Wear safety glasses and use protective clothing and gloves. Use
pressure. Wear safety glasses and use protective clothing and gloves. Use pressure. Wear safety glasses and use protective clothing and gloves. Use
pressure. Wear safety glasses and use protective clothing and gloves. Use
extreme caution when removing radiator cap and hoses.
extreme caution when removing radiator cap and hoses.extreme caution when removing radiator cap and hoses.
extreme caution when removing radiator cap and hoses.
NOTE: The MCX
NOTE: The MCXNOTE: The MCX
NOTE: The MCX-
--
-2 does not need t
2 does not need t2 does not need t
2 does not need to be connected to power for the following.
o be connected to power for the following.o be connected to power for the following.
o be connected to power for the following.
The MCX-2F will relieve the pressure in a hot-car radiator by drawing a vacuum on the overflow port
on the radiator cap.
Shop air (55 to 100 PSI), connected to the rear port of the MCX-2F causes a vacuum to be pulled on
the small diameter clear hose, also connected to the rear. This clear hose is connected to the
overflow port on the radiator cap as shown above.
The system Vacuum Gauge on the MCX-2F control panel indicates the vacuum level which will
increase until the radiator cap opens and relieves the pressure. As the pressure releases a small
amount of coolant will be seen flowing in the clear hose. When the pressure has been relieved, the
radiator cap will again close and the vacuum level will increase and become steady on the gauge.
The radiator cap can now be slowly and carefully removed.
SYSTEM PRESSURE
OFF
EXCHANGE COOLANT
Clear Hose
Green Hose
Black Hose
EMPTY WAST E TANK
OFF
EMPTY WAST E TANK
LOWER RADIAT OR
& OVERFLO W
OFF
SYSTEM VACUUM
EXCHANGE C OOLANT OR
FILL RADIATOR & OVERFLO W
Radiator
& OVERFLOW
FILL RADIATOR
& OVERFLOW
LOWER RADIATOR
EMPTY W ASTE TANK
TEST
Overflow
Radiator
Hose
Pump
SYSTEM VACUUM
EMPTY W ASTE TANK
FILL RADIATOR & OVERFLOW
EXCHANGE COOLANT OR
OFF
OFF
& OVERFLOW
LOWER RADIATOR
Heater
Core
Block
Engine
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