MacDon M105 Operator's Manual page 246

5. Check the aspirator duct opening (A) for obstructions
or damage. Clean if necessary.
6. Pull out the primary filter element (A).
IMPORTANT:
Be extremely careful with the dirty element, until you get
it completely out of the housing. Accidentally bumping
it while still inside means dropped dirt and dust may
contaminate the clean side of your filter housing, before
the new filter element has a chance to do its job.
Replace the secondary air filter (A) every year or after every
third primary filter change (even if it appears clean).
If you're changing the secondary air filter because it is dirty,
inspect the primary filter and the filter canister to determine
the reason for contamination.
• Examine the filter canister for cracks and replace if
necessary.
• Ensure filter sealing surfaces are soft, flexible, and
sealing properly. Hard seals may allow debris through
to the secondary filter.
• Ensure canister retaining latches are secure.
IMPORTANT:
• Do NOT remove the secondary filter element unless it
needs replacing.
• Do NOT attempt to clean the secondary element (A).
Replace only.
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MAINTENANCE AND SERVICING
232
Figure 5.69: Engine Air Cleaner
Figure 5.70: Engine Air Cleaner
Figure 5.71: Engine Air Cleaner
Revision A