Routine Service and Maintenance
4.4
Air Filter Replacement
1.
Check air filter and replace paper elements if they are extremely dirty or plugged.
2. Replace the outer paper element* (Item 3,
Figure 4–4
) and check inner element* (Item 2,
Figure 4–4
).
a. Unhook the two retaining clips and remove the end cap (Item 1,
Figure 4–4
) from the air
cleaner housing.
b. Pull the outer air cleaner element (Item 3,
Figure 4–4
) out of the housing.
c. After the main element is removed, check the condition of the inner element (Item 2,
Figure 4–4
). It should be replaced whenever it appears dirty, typically every other time
the main element is replaced. Clean the area around the base of the inner element before
removing it, so dirt does not get into the engine.
d. Do not wash the paper element and inner element or use pressurized air, this will
damage the elements. Replace dirty, bent or damaged elements with new genuine
Morbark, LLC repair parts as required.
e. Handle new elements carefully; do not use if the sealing surfaces are bent or damaged.
f. Check all parts for wear, cracks, or damage.
g. Replace any damaged components.
h. If needed, install the new inner element, followed by the outer element. Slide each fully
into place in the air cleaner housing.
i. Reinstall the end cap (Item 1,
Figure 4–4
) so the dust ejector valve is down and secure
the end cap with the two retaining clips.
*In extremely dusty or dirty operating conditions, this service cycle may need to be
shortened.
Figure 4-4 Air Filter Assembly
NOTE:
Extremely dusty or dirty working conditions may require more frequent checking,
filling and/or changing of engine oil.
d.
After filling the oil, wait a few minutes and check the oil level again.
Make sure to securely reinstall the dipstick into the dipstick tube before starting the engine.
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2
1
3
NOTICE
