Checking The Engine Oil Level; Cleaning The Underside Of The Housing; Replacing The Air Filter - Toro 20033 Operator's Manual

If you leave the wire on the spark plug, someone could accidently start the engine and seriously
injure you or other bystanders.
Disconnect the wire from the spark plug before you do any maintenance. Set the wire aside so
that it does not accidentally contact the spark plug.

Checking the Engine Oil Level

Before you use the lawn mower, ensure that the oil level is
between the Add and the Full marks as shown on the
dipstick (Fig. 5). If the oil level is below the Add mark, add
oil. Refer to Filling the Crankcase with Oil on page 7.
Cleaning the Underside of the
Housing
Remove grass clippings and dirt from the underside of the
housing after each use.
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. 9).
Figure 9
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 one 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 lawn mower deck has excessive
grass buildup, wait for 30 minutes and repeat steps 2
through 6 above.
Caution
1
1093
12
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
deck, tip the lawn mower and scrape it clean.
1. Disconnect the wire from the spark plug (Fig. 7).
2. Drain the gasoline from the fuel tank; refer to steps 3
and 4 of Emptying the Fuel Tank on page 15.
3. Tip the lawn mower onto its left side.
4. 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.
5. Turn the lawn mower upright.
6. Connect the wire to the spark plug.

Replacing the Air Filter

Replace the air filter after every 25 operating hours; replace
it more frequently when you operate the lawn mower in
dusty or dirty 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. 7).
3. Loosen the screw that secures the air filter cover to the
engine (Fig. 10).