Replacing Secondary Air Filter - MacDon M2170NT Operator's Manual

5. If the secondary element passes inspection, use compressed air not exceeding 270 kPa (40 psi) and a dry element
cleaner gun to clean the primary element. Hold the nozzle next to the inner surface only and move it up and down on
the pleats.
NOTE:
After three cleanings (or at the specified interval), replace the primary element.
6. Repeat the inspection before installation. For installation instructions, refer to
343.

Replacing Secondary Air Filter

The secondary element should be replaced every third time the primary element is changed.
IMPORTANT:
• The secondary filter element should NEVER be cleaned, only replaced. Do NOT remove the secondary filter element
unless it needs replacing.
• Replace the secondary element annually or after every third primary filter change, even if it appears clean.
• If replacing the secondary element, a further inspection may be necessary.
• Examine the filter canister for cracks and replace it as necessary.
• Ensure the canister retaining latches are secure. Ensure the filter sealing surfaces are soft, flexible, and sealing, not hard
and allowing debris through to the secondary filter.
1. Remove the primary filter. For instructions, refer to
Filter Part Numbers, page
IMPORTANT:
When replacing secondary filter (A), reinsert the new filter
as soon as possible to prevent dirt from entering the
engine intake.
262171
MAINTENANCE AND SERVICING
6.1.5
281.
Installing Primary Engine Air Filter, page
A
Figure 6.96: Secondary Air Filter
345
Revision A