Maintenance Instructions B27i
Cleaning
52
Canister
Dust Ejection
Valve
Cover
Primary Filter
Element
Cover
Latch
Air Cleaner Components
(Shown with Cover Being Removed)
IMPORTANT: The Donaldson air cleaner uses a
dry paper-type air lter element. NEVER apply oil
to the paper element.
Air Filter
Restriction Gauge
Push Button to Reset
Indicator After Service
Air Filter Restriction Gauge Location
Inspect the paper element after every 100 hours
of service and replace the element and safety lter
every 400 hours (or when dirty or damaged).
More frequent replacement may be required when
operating in extremely dusty conditions as indicat-
ed by the air lter restriction gauge. Service the air
cleaner as follows:
1. Release the top and bottom cover latches and
remove the air cleaner cover. Wash the cover
and dust ejection valve. Check that these
components are in good condition. The dust
ejection valve is subject to wear and deteriora-
tion and should be inspected carefully and
replaced every two years or when damaged.
The lips of the valve should close and t to-
gether; any cracks, deformation, or wear in the
valve is cause for replacement.
2. Remove the lter element by pulling it out of
the canister. There will be some initial resis-
tance as the lter seal breaks loose and slides
o of the outlet tube. Gently move the end of
the lter up and down and side to side or twist
to loosen the seal. Use gentle action to mini-
mize the amount of dust dislodged as the lter
is removed.
3. Discard the lter element if excessive air ow
restriction has been indicated by the air lter
restriction gauge and proceed to Step 6.
Clean the lter element by gently tapping on
a at, hard surface. If excessive restriction
still exists after cleaning the element, it should
be replaced.
NOTE: Use care when cleaning the lter
element. The lter element and/or seal sur-
face may be damaged by tapping too hard or
hitting on an uneven surface or sharp edge.
Washing the element in water or cleaning
solution is not recommended. Do not try to
clean the element with compressed air.
Remember replacing a lter is less expensive
than replacing a dusted engine.
4. Use a bright light inside the element to inspect
for damage. Check the element very carefully
for pin holes or other damage that will allow
dirt to leak through the paper media. Replace
element if necessary.
5. Check the condition and resilience of the radial
sealing surface (inside of the open end) of the
lter. Replace the lter if any cracks, tears, or
other damage to the sealing surface are not-
ed.
6. Without removing, visually inspect the condi-
tion of the safety lter for damage or holes.
The safety lter should only be removed for
replacement every 400 hours (or when dirty
or damaged).
IMPORTANT: Prior to removing the safety
lter, make sure the inside surface of the air
cleaner canister is clean. This will minimize
the risk of dirt entering the outlet tube which
can cause premature engine wear.
7. After removing the safety lter, use a clean,
damp cloth and wipe the interior of the air
cleaner canister clean. Use special care to
clean both the inside and outside surfaces
of the outlet tube.
To Next Page
Loading...
Need help?
General
