Walker MC (20 HP) - Manual (Page 57)

Maintenance Instructions
CLEANING
53
Donaldson Radialseal™ Air Cleaner
A remote mounted Donaldson Radialseal™ air
cleaner provides the air filtering function. The paper
filter element slides over an outlet tube inside the air
cleaner canister with radial sealing action, reducing
the possibility of dust leaks due to improper filter
installation. Intake design, internal baffling, and a
Vacuator™ valve provide dust separation and auto-
matic precleaning action. Daily or frequent servicing
of the air cleaner is not required. Use the air re-
striction gauge on the air cleaner outlet to indicate
when the air filter needs servicing -- a red flag will
appear when the filter is overly restricting airflow into
the engine.
IMPORTANT: Use only Donaldson air filter ele-
ments for replacement (Donaldson P822686 or
Walker 5090-1). Aftermarket filters may not seal
properly or filter efficiently.
Canister
Radialseal™
Filter Element
Vacuator™
Valve
Cover
Cover
Latches
Air Cleaner Components
(Shown with Cover Being Removed)
IMPORTANT: The Donaldson air cleaner uses a dry
paper-type air filter element. NEVER apply oil to the
paper element.
Air Restriction
Gauge
Push Button to Reset
Indicator After Service
Air Restriction Gauge Location
Inspect the paper element after every 100 hours of
service and replace the element and safety filter
yearly (or when dirty or damaged). More frequent
replacement may be required when operating in ex-
tremely dusty con ditions as indicated by the air
restriction gauge. Ser vice the air cleaner as fol-
lows:
1. Release the top and bottom cover latches and
remove the air cleaner cover. Wash the cover
and Vacuator™ valve. Check that these com-
ponents are in good condition. The Vacuator™
valve is subject to wear and deterioration and
should be replaced yearly or when damaged.
The lips of the valve should close and fit togeth-
er; any cracks, deformation, or wear in the valve
is cause for replacement.
2. Remove the filter element by pulling it out of the
canister. There will be some initial resistance
as the filter seal breaks loose and slides off of
the outlet tube. Gently move the end of the
filter up and down and side to side or twist to
loosen the seal. Use gentle action to minimize
the amount of dust dislodged as the filter is re-
moved.
3. Replace filter element.
NOTE: Washing the element in water or clean-
ing solution is not recommended. Do not try to
clean the element with compressed air.