Preparing For Maintenance; Replacing The Air Cleaner; Changing The Engine Oil - Toro HoverPro 450 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
(Figure 19) before performing any maintenance
procedure.
1. Spark plug wire
3. After performing the maintenance procedure(s),
connect the spark plug wire to the spark plug.
WARNING
Tipping the machine 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.
Important: Always tip the machine onto its side
with the dipstick down.

Replacing the Air Cleaner

Service Interval: Yearly
1. Press down on the latch tabs on top of the air cleaner
cover (Figure 20).
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Figure 19
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1
1. Cover
2. Latch tabs
2. Open the cover.
3. Remove the filter (Figure 20).
4. Inspect the filter, and replace it if it is damaged or
excessively dirty.
5. Inspect the paper air filter.
A. If the filter is damaged or is wet with oil or fuel,
replace it.
B. If the filter is dirty, tap it on a hard surface several
times or blow compressed air less than 207 kPa
(30 psi) through the side of the filter that faces
the engine.
Note: Do not brush the dirt off the filter;
brushing forces dirt into the fibers.
6. Remove dirt from the air cleaner body and cover using
a moist rag. Do not wipe dirt into the air duct.
7. Insert the filter into the air cleaner.
8. Install the cover.

Changing the Engine Oil

Service Interval: After the first 5 hours
Yearly
1. Ensure that the fuel tank contains little or no fuel so
that fuel does not leak out when you tip the machine
onto its side.
2. Run the engine a few minutes before changing the oil
to warm it.
Note: Warm oil flows better and carries more
contaminants.
3. Disconnect the wire from the spark plug. Refer to
Preparing for Maintenance.
4. Remove the dipstick.
5. Tip the machine onto its side, with the dipstick down,
to drain the used oil out through the oil fill tube.
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Figure 20
3. Filter