Safety Filter
A safety filter is built into the connector which joins the tube from the
restriction indicator to the engine air intake manifold. This filter prevents
unfiltered air from entering the engine if the tube to the indicator or the
indicator itself becomes damaged.
The restriction indicator will fail to operate if the indicator or the tube
between the indicator and manifold are damaged to the extent that air can
enter either part. The restriction indicator will also fail to operate if the safety
filter is plugged.
Checking for Plugged Safety Filter
Remove the body cover and the outer element of the air cleaner. Start the
engine. Wrap a piece of paper around the inner element so that air flow is
sealed off. If the red signal band fails to appear in the restriction indicator, the
safety filter is plugged. The connector and safety filter must be immediately
replaced as a unit.
Air Cleaner Servicing
When the restriction indicator shows the red band, service the elements as
follows:
1. Replace the air cleaner outer element, or clean it by washing or back-
blowing with compressed air.
2. After replacing/cleaning the outer element, install it in the air cleaner. Start
the engine and check restriction indicator.
3. If indicator still shows the red band, replace the air cleaner inner element
immediately. Do not attempt to clean the inner element.
Washing the Outer Element
Washing is the preferred method of cleaning the element. Have two or
three spare elements on hand to reduce down time when servicing.
The element should be replaced after 6 washings or one year, whichever
comes first. Do not use elements which are over three years old. The month
and year of manufacture are stamped on the metal end cap of the element.
Wash the filter in Case Filter Element Cleaner (available from your Case
dealer) according to instructions on the container. Rinse thoroughly in clear
water; do not use a hard stream from a hose. Set filter aside to dry; do not use
compressed air to dry the element.
84
To Next Page
Loading...
