Toro 31500000, Operator'S Manual

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Important:
Always replace a spark plug when it
has a black coating, worn electrodes, an oily film,
or cracks.
2. Check the gap between the center and side electrodes
(
Figure 27 ). Bend the side electrode ( Figure 27 ) if the
gap is not correct.
Removing the Spark Plugs
1. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
2. Disconnect the wires from the spark plugs ( Figure 28 ).
Figure 28
1. Spark-plug wire 2. Spark plug
3. Clean around the spark plugs to prevent dirt from
falling into the engine and potentially causing damage.
4. Remove the spark plugs and the metal washers.
Installing the Spark Plugs
1. Install the spark plugs and the metal washer. Ensure
that the air gap is set correctly.
2. Tighten the spark plugs to 24.4 to 29.8 N-m (18 to
22 ft-lb).
3. Connect the wires to the spark plugs ( Figure 27 ).
Replacing the Fuel Filter
Service Interval: Every 500 hours
Never install a dirty filter if it is removed from the fuel line.
1. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
2. Allow the machine to cool down.
3. Squeeze the ends of the hose clamps together and slide
them away from the filter (
Figure 29 ).
Figure 29
1. Fuel filter 3. Fuel hose
2. Hose clamp
4. Remove the filter from the fuel lines.
5. Install a new filter and move the hose clamps close to
the filter (
Figure 29 ).
Servicing the Fuel Tank
DANGER
In certain conditions, gasoline is extremely
flammable and highly explosive. A fire or explosion
from gasoline can burn you and others and can
damage property.
• Drain gasoline from the fuel tank when the
engine is cold. Do this outdoors in an open area.
Wipe up any gasoline that spills.
• Never smoke when draining gasoline, and stay
away from an open flame or where a spark may
ignite the gasoline fumes.
1. Park the machine on a level surface to ensure that the
fuel tanks drain completely.
2. Stop the engine, remove the key, and wait for all moving
parts to stop before leaving the operating position.
3. Loosen the hose clamp at the fuel filter and slide it up
the fuel line away from the fuel filter (
Figure 29 ).
4. Disconnect the fuel line from the fuel filter ( Figure 29 ).
Note:
Allow gasoline to drain into a fuel container can
or drain pan ( Figure 29 ).
Note:
This is the best time to install a new fuel filter
because the fuel tank is empty.
5. Install the fuel line onto the fuel filter. Slide the hose
clamp close to the fuel filter to secure the fuel line
(
Figure 29 ).
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