Fuel System Maintenance; Changing The Fuel Filter; Draining The Fuel Tanks - Toro 22318 Operator's Manual

Figure 25
1. Spark plug wire
3. Clean around the spark plugs.
4. Remove both spark plugs and metal washers.
Checking the Spark Plugs
1. Look at the center of both spark plugs
you see light brown or gray on the insulator, the engine
is operating properly. A black coating on the insulator
usually means the air cleaner is dirty.
Important: Never clean the spark plugs. Always
replace the spark plugs when they have a black
coating, worn electrodes, an oily film, or cracks.
Figure 26
1. Center electrode insulator
2. Side electrode
2. Check the gap between the center and side electrodes
(Figure 26).
3. Bend the side electrode
correct.
Installing the Spark Plugs
1. Thread the spark plugs into the spark plug holes.
2. Tighten the spark plugs to 20 ft-lb (27 N-m).
3. Push the wires onto the spark plugs
2. Spark plug
(Figure 26). If
3. Air gap (not to scale)
(Figure 26) if the gap is not
(Figure 25).
Fuel System
Maintenance

Changing the Fuel Filter

Service Interval: Yearly
Important: Never install a dirty filter.
1. Lower the loader arms, stop the engine, and remove
the key.
2. Shut off the fuel valve on the bottom of each fuel tank
(Figure 28).
3. Clamp the fuel line between the fuel tanks and the fuel
filter to block the fuel flow.
4. Squeeze the ends of the hose clamps together and slide
them away from the filter
1. Filter
5. Place a drain pan under the fuel lines to catch any leaks,
then remove the filter from the fuel lines
6. Install a new filter and move the hose clamps close to
the filter.
7. Remove the clamp blocking fuel flow and open the fuel
valve.

Draining the Fuel Tanks

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 tanks 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 traction unit on a level surface, to ensure that
the fuel tanks drain completely.
2. Lower the loader arms, stop the engine, and remove
the key.
25
(Figure 27).
Figure 27
2. Hose clamp
(Figure 27).