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Idiomas disponibles
Idiomas disponibles
THE MINI TYPE IN JAPANESE CARS
This is a smaller version of the basic pressure cap and replaces the standard 13 or 16 lbs pressure cap in cars with
smaller hoods. These are typically small cars with smaller radiators with plastic tanks.
THE THREADED TYPE
These threaded plastic radiator caps were engineered for cars with pressurized overflow bottles. The systems are
checked from the surge bottle neck instead of from the radiator. Since these bottles are made of plastic and not metal,
as are the filler necks, there was no need for a metal pressure cap. With these caps the same precautions should still
be taken when removed, because the bottles are pressurized.
THE SAFETY TYPE (ST)
This specific radiator cap has a special feature that ensures the relief of the dangerous steam pressure before the
removal of the cap and is available in both the vented and non-vented vacuum valve design. It is built in such a way
that the lever mechanism interlocks with the filler neck, preventing removal of the cap until the lever is lifted. By lifting
the lever, the pressure valve is lifted off the lower sealing seat, thus relieving the pressure. This special design allows
the flow to be regulated by the manufacturer's original overflow tube design.
Note: Even with this type of cap, precautions should be followed during removal to prevent potential injury.
OPERATING INSTRUCTIONS OF THE PRESSURE TESTER
1. Remove the radiator cap cautiously. For safety type caps (ST), lift the lever until the pressure is released. Make
sure the cap pressure (marked on the cap), is the recommended pressure of the original equipment cap.
2. Choose the right adapter for the cap being tested. Make sure seating surfaces of both the adapter and the cap are
clean. If testing a safety type cap (ST), make sure the lever is up.
3. In order to attach the adapter to the tester head, you must first make sure the pressure valve is compressed, in
order to make the engagement easier. This can be done by rotating the pressure valve release handle (located on top
of the tester head) clockwise until it is parallel to the tester head handle. Now attach the adapter by rotating it until the
locking ears contact the stops on the adapter cams.
4. If testing a new cap, wet the rubber gasket.
Note: Because in new caps the gasket is not yet "worn in", it might take a few tries before achieving a proper seal.
During use in the car, the gasket will soften and develop satisfactory seating on the filler neck.
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