MEDIUM DUST AIR CLEANERS
118
•
Engine Air Filtration
www.buydonaldson.com
FRG Air Cleaners
Service Instructions
1
2
3
This servicing information is provided as a best practices guide. It is not intended to replace or supersede the
service instructions supplied by your engine or vehicle manufacturer.
Check the Restriction
Replace the filter only when the
restriction level has reached the maximum
recommended by the engine or equipment
manufacturer or on a regular service
schedule.
Remove the primary Filter and
check the vacuator
™
valve
Shut off the engine. Unfasten or unlatch the
service cover.
Because of its RadialSeal
™
, the filter fits
tightly over the outlet tube and there will be
some initial resistance, similar to breaking
the seal on a jar. Gently move the end of
the filter back and forth to break the seal
then rotate while pulling straight out. Avoid
knocking the filter against the housing.
If your air cleaner is equipped with a
Vacuator
™
Valve, visually check and physically
squeeze it.
visually Check the Safety
Filter and Clean Both Surfaces
of the outlet tube
If your air cleaner has a safety filter, visually
check the safety filter in place for signs of
damage. Do not remove the safety filter
unless it is damaged or due for replacement.
Also verify that the safety filter is properly
seated in the housing.
The safety filter should be replaced every three
primary filter changes. Use a clean damp cloth
to wipe both the filter sealing surface and the
inside of the outlet tube. Ensure that the outlet
tube sealing area is undamaged.
Contaminant on the sealing surface could
hinder an effective seal and cause leakage.
If the safety filter is to be replaced, avoid
leaving the outlet tube exposed to the air.
If there is to be a delay in installing the new
safety filter, cover the air cleaner outlet tube
to avoid admitting any dust.
Make sure the valve is flexible and not inverted,
damaged or plugged. Replace it if damaged or if
it looks like any of these images. A damaged or
missing vac valve will disrupt the designed flow
of air through the air cleaner.
