Replacing The Fuel Filter; Servicing The Fuel Tank - Toro 44538 Operator's Manual

1. Center electrode insulator
2. Side electrode
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 24). Bend the side electrode (Figure 24) 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 25).
1. Spark-plug wire
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 24).
Figure 24
3. Air gap (not to scale)
Figure 25
2. Spark plug

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 26).
1. Fuel filter
4. Remove the filter from the fuel lines.
5. Install a new filter and move the hose clamps close to
the filter (Figure 26).

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 and remove the key.
3. Loosen the hose clamp at the fuel filter and slide it up
the fuel line away from the fuel filter (Figure 26).
4. Disconnect the fuel line from the fuel filter (Figure 26).
Note: Allow gasoline to drain into a fuel container can
or drain pan (Figure 26).
23
Figure 26
2. Hose clamp