Preparing For Maintenance; Changing The Engine Oil; Replacing The Air Filter - Toro 20073 Operator's Manual

Preparing for Maintenance

1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the spark plug wire from the spark plug
and hook it onto the retaining post (Figure 23) before
performing any maintenance procedure.
Figure 23
1. Spark plug retaining post
3. After performing the maintenance procedure(s),
connect the spark plug wire to the spark plug.
Important: Before tipping the mower to change
the oil or replace the blade, allow the fuel tank to
run dry through normal usage. If you must tip the
mower prior to running out of fuel, use a hand fuel
pump to remove the fuel. Always tip the mower
onto its side, with the air filter up.
Tipping the mower may cause the fuel to leak.
Gasoline is flammable, explosive and can cause
personal injury.
Run the engine dry or remove the gasoline with a
hand pump; never siphon.

Replacing the Air Filter

Replace the air filter yearly; replace it more frequently in
dusty operating conditions.
1. Refer to Preparing for Maintenance.
2. Rotate the air filter cover to remove it (Figure 24).
Figure 24
1. Air lter cover
3. Replace the air filter.
4. Install the cover.

Changing the Engine Oil

Change the engine oil after the first 2 operating hours;
change it yearly thereafter.
Run the engine a few minutes before changing the oil
to warm it. Warm oil flows better and carries more
contaminants.
1. Refer to Preparing for Maintenance.
2. Remove the dipstick (Figure 25).
Figure 25
3. Tip the mower onto its side with the air filter up to drain
the used oil out through the oil fill tube (Figure 26).
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2. Air lter