Inspecting the Outer Element
To inspect the element after it is clean and dry, usea light bulb. By rotating
the filter element against the light, the element can be checked for damage or
pinholes. Visually check the rubber gasket for damage. If any holes appear in
the element or the gasket is damaged, the element must be replaced.
The filter elements must also be checked for dents in the metal covering.
Any dent in the covering is a potential puncture because it lets the paper
element rub the dent. If any fuzz is noted around a dent or any place in the
element, the element is punctured. Replace it immediately or serious damage
will result. Do not accept a new filter or install a new or used filter if the metal
covering is dented.
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