Air Filter - Toro 22172 Operator's Manual

Service Item
Inspect and clean. Replace if
Spark Plug
necessary.
Clean grass, clippings, debris
or dirt that may clog engine air
cooling fins and starter. Clean
Cooling System
more frequently if operated
under dirty or high chaff
conditions.
POTENTIAL HAZARD
If you leave the wire on the spark plug, someone could start the engine.
WHAT CAN HAPPEN
Accidental starting of engine could seriously injure you or other bystanders.
HOW TO AVOID THE HAZARD
Pull the wire off of the spark plug before you do any maintenance. Also push wire aside so it
does not accidentally contact spark plug.

Air Filter

Clean the foam pre-cleaner every 25 hours of operation.
Clean the paper air filter every 100 hours of operation.
Replace the paper air filter once every season or every
300 hours of operation; replace it more frequently under
dusty conditions.
IMPORTANT: Do not operate the engine without the
air filter assembly; extreme engine damage will occur.
1. Stop the engine and pull the wire off of the spark plug
(Fig. 5).
2. Remove the bolt securing the air cleaner cover
(Fig. 16).
3. Remove the cover and clean it thoroughly (Fig. 16).
4. Remove the foam pre–cleaner and wash it with a mild
detergent and water, then blot it dry (Fig. 16).
5. Saturate the pre-cleaner with oil, then squeeze it (do
not twist) to remove excess oil.
6. Remove the paper air filter and discard it (Fig. 16).
IMPORTANT: Do not try to clean a paper filter.
7. Install the foam pre-cleaner on the new paper air filter.
8. Reinstall the air cleaner assembly.
9. Reinstall the cover and secure it with the bolt.
Service Operation
CAUTION
After
every 5 25
use
Hours Hours
Figure 16
1. Bolt
2. Cover
13
50 100 200
Hours Hours Hours
X
X
1
2
3
4
3. Paper air filter
4. Foam pre-cleaner