MacDon M1240, Руководство оператора

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MAINTENANCE AND SERVICING
Cleaning Primary Air Filter
The engine air cleaner’s primary fi lter should be replaced after three cleanings or at the speci fi ed interval. The
secondary element should be replaced every third time the primary element is changed. Refer to 5.2 Windrower
Break-In Inspections and Maintenance Schedule, page 238 for the required interval.
IMPORTANT:
• The secondary fi lter element should NEVER be cleaned, only replaced.
• Air fi lter 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 steps should be followed. If any of
the conditions described in these steps are found, the
fi lter element MUST be replaced.
1. Hold a bright light inside element and check carefully for holes. Vibration would quickly wear a hole in the fi lter.
2. Check fi lter gasket for cracks, tears, or other signs of damage.
3. Check element for oil or soot contamination.
4. Check the secondary element for cleanliness. If there is visible dirt on the secondary element, replace both
primary and secondary elements. Do NOT clean.
5. If 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 nozzle next to inner surface only and move up and down on
pleats.
NOTE:
After three cleanings (or at the speci fi ed interval), replace the primary element.
6. Repeat inspection before installing. Refer to Installing Engine Primary Air Filter, page 281 .
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