Replacing The Air Filter; Servicing The Spark Plug - Toro 20833 Operator's Manual

Washing Method
1. Move the lawn mower onto a flat paved surface near a
water hose.
2. Turn the water on high.
3. Start the engine.
4. Hold the running water hose at handle level and direct
the water flow on the ground just in front of the rear
right wheel (Fig. 17).
Figure 17
1. Rear right wheel
Note: The water will splash into path of the blade and
wash out the clippings. Continue washing with water
until you no longer see clippings being washed out from
under the housing.
5. Move the lawn mower to a dry area, and let the engine
run for 1 minute to dry out the lawn mower and its
components.
6. Stop the engine and wait for all moving parts to stop.
If the underside of the housing has excessive grass buildup,
wait for 30 minutes and repeat steps 2 through 6 above.
Scraping Method
Warning
Tipping the lawn mower may cause the fuel to leak
from the carburetor or the fuel tank. Gasoline is
extremely flammable, highly explosive and under
certain conditions can cause personal injury or
property damage.
Avoid fuel spills by running the engine dry or
removing gasoline with a hand pump; never
siphon.
If washing does not remove all the debris from under the
housing, tip the lawn mower and scrape it clean.
1. Remove the grass bag.
2. Disconnect the wire from the spark plug (Fig. 10).
3. Drain the gasoline from the fuel tank; refer to steps 3
and 4 of Emptying the Fuel Tank on page 17.
4. Tip the lawn mower onto its left side.
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5. Remove the dirt and grass clippings with a hardwood or
plastic scraper. Avoid burrs and sharp edges.
Important
Move the blade as little as possible to avoid
future starting problems.
6. Turn the lawn mower upright.
7. Connect the wire to the spark plug.

Replacing the Air Filter

Replace the air filter every season or every 25 operating
hours; replace it more frequently under dusty operating
conditions.
Important Do not operate the engine without the air
filter element; extreme engine damage will occur.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 10).
3. Loosen the screw that secures the air cleaner cover
(Fig. 18).
4. Tilt the cover down and clean it thoroughly (Fig. 18).
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Figure 18
1. Air filter
2. Screw
5. Remove the paper air filter and discard it (Fig. 18).
Important Do not try to clean the paper air filter.
6. Insert a new paper air filter (Fig. 18).
7. Install the air filter cover and secure it with the screw.
8. Connect the wire to the spark plug.

Servicing the Spark Plug

Check the spark plug after every 25 operating hours. Use a
Champion RJ19LM spark plug or equivalent.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Fig. 10).
3. Clean around the spark plug.
4. Remove the spark plug from the cylinder head.
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3. Cover