MacDon M105 Operator's Manual page 249

6. After servicing the filter, you must reset the restriction
switch (A) by pushing the button on the end of it to
reset it.
7. Close the hood, refer to
Position), page 203.
Cleaning Engine Air Filter Primary Element
IMPORTANT:
The secondary (inner) element should NEVER be cleaned, only replaced.
IMPORTANT:
Air filter element cleaning is NOT recommended due to the possible degradation of the element material. If
cleaning is performed, there are several risks involved and the following procedures should be followed. If any of
the following conditions are found, the filter element MUST be replaced.
1. Hold a bright light inside element, and check carefully for holes.
2. Check outer screen for dents. Vibration would quickly wear a hole in the filter.
3. Check filter gasket for cracks, tears, or other signs of damage.
4. Check element for oil or soot contamination.
5. Check the secondary element for cleanliness. If there is visible dirt on the secondary element, replace both
primary and secondary elements. Do NOT clean.
IMPORTANT:
The air cleaner's primary (outer) filter element should be replaced after three cleanings or at the specified interval.
The secondary (inner) element should be replaced every third time the primary element is changed. Refer to
Maintenance Schedule, page 313
6. If secondary element passes inspection, clean primary element as follows:
a. Use compressed air NOT exceeding 60 psi (400 kPa), and a Dry Element Cleaner Gun.
b. Hold nozzle next to inner surface only, and move up and down on pleats.
c. After three cleaning's (or at the specified interval), replace the primary element.
7. Repeat inspection before installing.
169890
MAINTENANCE AND SERVICING
5.4.2 Closing Hood (Lower
for the required interval.
Figure 5.75: Engine Air Cleaner
235
5.7.11
Revision A