Exmark Commercial 21 4500-686 Rev. B - Manual (Page 26)

Maintenance
Service Air Filter
(Kawasaki Units)
Service Interval: Every 25 hours—Clean
the foam pre-cleaner
(Kawasaki Units).
Every 300 hours—
Replace the paper air
filter (Kawasaki Units).
(May need more often in
dusty conditions. See
the Engine manual for
additional information.)
Note: Do Not operate the engine without the air
filter assembly; extreme engine damage will occur.
1. Stop engine, wait for all moving parts to stop.
2. Disconnect the wire from the spark plug
(Figure 11).
3. Remove the cover and clean it thoroughly.
Figure 26
ECXKA21 and ECXKABBC21 Units
1. Cover 3. Paper air filter
2. Foam element 4. Air filter base
Figure 27
ECSKA21 and ECSKCP21 Units
1. Cover 3. Foam element
2. Paper air filter
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 element and wash it with a mild
detergent and water, then blot it dry.
6. Saturate the element with clean engine oil, then
squeeze it (Do Not twist) to remove the excess oil.
7. Install the foam element.
8. Install the new paper air filter.
9. Install the cover.
Service Air Filter
(ECSHN21 Units)
Service Interval: Every 25 hours—Clean
the cover, base, foam
and paper elements
(ECSHN21 Units).
Every 250 hours— Replace
the air filter elements
(ECSHN21 Units). (May
need more often if they are
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