Toro 34231, Operator'S Manual

Page: 53 / 84

Engine Maintenance
Servicing the Air Cleaner
Service Interval: Every 25 hours—Check the foam
pre-cleaner; replace if dirty (more
often under severe conditions).
Every 100 hours or yearly, whichever comes
first—Clean or change the air filter.
Every 400 hours—Replace the air filter.
Important:
Do not operate the engine without the
air filter assembly; extreme engine damage may
occur.
Cleaning the Foam Filter Element
1. Open the spray tanks to access the engine; refer
to
Opening the Tanks (page 50) .
2. Remove the foam pre-cleaner from the paper
element.(
Figure 68 ).
3. Wash the pre-cleaner with warm water and a
mild detergent.
4. Rinse the pre-cleaner and allow it to air dry.
5. Lightly oil pre-cleaner with new engine oil;
squeeze out excess oil.
6. Close the spray tanks; refer to Closing the Tanks
(page 51) .
Replacing the Air-Cleaner
Assembly
1. Open the spray tanks to access the engine; refer
to
Opening the Tanks (page 50) .
2. Unhook the clips on the air-cleaner cover and
remove the cover (
Figure 68 ).
3. Remove the knob and plate ( Figure 68 ).
4. Carefully remove the air-cleaner assembly to
prevent debris from entering the carburetor.
5. Install the new foam pre-cleaner on to the new
cartridge (
Figure 68 ).
6. Install the air-cleaner assembly, plate, and knob
in the body (
Figure 68 ).
7. Install the cover and secure it using the clips
(
Figure 68 ).
g313099
Figure 68
1. Cover
4. Plate
2. Clip 5. Cartridge
3. Knob 6. Foam pre-cleaner
8. Close the spray tanks; refer to Closing the Tanks
(page 51) .
Engine Oil Specification
Oil Type: Toro 4-Cycle Premium Engine Oil or a
high-quality detergent oil (including synthetic) API
service SJ or higher
Oil viscosity: Refer to the table below.
g312926
Figure 69
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