Routine Service and Maintenance
4.12
Monthly Maintenance Procedures
Do the following procedures monthly or every 200 operating hours:
1. Do all Daily and Weekly maintenance procedures.
2.
Replace engine oil and engine oil filter - see engine manual.
3.
Check air filter and replace outer paper element (Item 3,
Figure 4–13
).
4. Replace the outer paper element* (Item 3,
Figure 4–13
) and check inner element* (Item 2,
Figure 4–13
).
a. Unhook the two retaining clips and remove the end cap (Item 1,
Figure 4–13
) from the
air cleaner housing.
b. Pull the outer air cleaner element (Item 3,
Figure 4–13
) out of the housing.
c. After the main element is removed, check the condition of the inner element (Item 2,
Figure 4–13
). 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 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 4–13
) 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 4-13 Air Filter Assembly
1
2
1
3
