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D-3
Service Instructions & Installation Tips
1
Release the
Seal Carefully
Unlatch and remove the service
cover of the air cleaner. Make
certain the latches are folded
back against the cover so that
they donít hinder filter
removal/installation. Most latches
are spring loaded to fold back when open.
The filter fits tightly over the outlet tube,
creating the critical seal on the inside
diameter of the filter endcap. The filter
should be removed gently to reduce the
amount of dust dislodged. 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.
2
Avoid Dislodging
Dust from the Filter
Gently pull the
filter off the outlet
tube and out of the
housing. Avoid
knocking the filter
against the housing.
3
Clean Sealing Surface
of the Outlet Tube
Use a clean cloth to wipe the sealing
surface. Dust on the outside diameter of the
outlet tube could hinder
an effective seal
and cause leakage.
Make sure that all
contaminant is
removed before the
new filter is inserted.
4
Clean the Inside of
the Outlet Tube
Carefully wipe the inside
of the outlet tube
with a clean cloth.
Dirt accidently
transferred to the
inside of the outlet
tube will reach the
engine and cause wear.
(Engine manufacturers says that it takes
only a few grams of dirt to ëdustí an
engine!) Be careful not to damage the
sealing area on the tube.
MAINTENANCE
For Engine Air Filter
5
Check the Old
Filter for Leak Clues
Visually inspect the old filter for any signs
of leaks. A streak of dust on
the clean side of the filter
is a telltale sign.
Remove any cause
of leaks before
installing new
filter.
6
Inspect the New
Filter for Damage
Inspect the new filter carefully,
paying attention to the inside of
the open end,
which is the
sealing area.
NEVER install
a damaged filter.
7
Insert the New
ô
RadialSeal
Filter
by Hand
Insert carefully. Seat the new filter by hand,
making certain it is completely into the air
cleaner housing before latching the cover in
place. If the cover hits the filter before it is
fully in place, remove the cover and push
(by hand) the
filter further into
the air cleaner
and try again.
The cover
should go on
with no extra force.
Never use the latches on the cover to force
the filter into the air cleaner! It is tempting
to assume the cover will do the job of
seating the filter ñ but it will not! Using the
latches to push the filter in could cause
damage to the housing and will void the
warranty.
RANGER 305D
Donaldson filters with RadialSeal
Technology are self-aligning, self-centering,
and self-sealing. A new filter has a dry
lubricant to aid installation. The critical
sealing area will stretch slightly, adjust
itself and distribute the sealing pressure
evenly. To complete a tight seal, apply
pressure by hand at the outer rim of the
filter, not the flexible center. (Avoid
pushing on the center of the urethane end
cap.) No cover pressure is required to hold
the seal. Again, do NOT use the service
cover to push the filter into place!
When the filter in is place, put the service
cover back on, making sure the Vacuator
Valve points down. Inspect the Vacuator
Valve for cracks or dust hang-ups to insure
that it is functioning properly. Re-fasten
the latches.
8
Check Connections
for Tight Fit
Make sure that all clamps, bolts, and
connections in the entire air intake system
are tight. Check for holes in piping, and
repair if needed.
D-3
™
Sealing
™
™
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