Service Air Filter(Honda Units) - Exmark METRO 21 Operator's Manual

Figure 23
1. Cover
2. Foam pre-cleaner
4. Remove the paper air filter and discard it as
required.
Note: Do Not try to clean a paper air filter.
5. Remove the foam pre-cleaner and wash it with a
mild detergent and water, then blot it dry.
6. Saturate the pre-cleaner with clean engine oil, then
squeeze it (Do Not twist) to remove the excess oil.
7. Install the foam pre-cleaner.
8. Install the new paper air filter.
9. Install the cover.
Service Air Filter
(Honda Units)
Service Interval: Every 25 hours—Clean
the cover, base, foam and
paper elements (Honda
Units).
Every 250 hours— Replace
the air filter elements
(Honda Units). (May need
more often if they are
damaged or excessively
dirty.)
Note: Do Not operate the engine without the air
cleaner assembly; extreme engine damage will occur.
1. Stop the engine and wait for all moving parts to
stop.
3. Paper air filter
4. Air filter base
2. Disconnect the wire from the spark plug
(Figure 9).
3. Remove the two wing nuts that secure the cover
(Figure 24).
1. Wing nuts
2. Cover
3. Paper element
4. Remove the cover.
Note: Be careful to prevent dirt and debris from
falling into the base.
5. Remove the foam and paper elements from the
base.
6. Remove the foam element from the paper
element.
7. Inspect the foam and paper elements, and replace
them if they are damaged or excessively dirty.
8. Tap the paper element on a hard surface several
times or use compressed air not exceeding 30
psi (207 kPa) through the filter from the wire
screen side to remove any excess dirt. If the paper
element is excessively dirty, replace it.
Note: Never try to brush dirt off the paper
element; brushing forces the dirt into the fibers.
9. Clean the foam element in warm, soapy water or
in a nonflammable solvent.
10. Rinse and dry the foam element thoroughly.
27
Maintenance
Figure 24
4. Foam element
5. Base