Fuel System Maintenance; Draining The Fuel Tank - Toro 30319 Operator's Manual

Figure 39
1. Spark plug wire
Checking the Spark Plug
1. Look at the center of the spark plug(s)
(Figure 40). If 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
plug(s). Always replace the spark plug(s)
when it has: a black coating, worn
electrodes, an oily film, or cracks.
Figure 40
1. Center electrode insulator
2. Side electrode
2. Check the gap between the center and side
electrodes (Figure 40). Bend the side electrode
if the gap is not correct.
Installing the Spark Plug(s)
1. Install the spark plug(s) and metal washer.
Make sure the air gap is set correctly.
2. Spark plug
3. Air gap (not to scale)
2. Tighten the spark plug(s) to 30 ft-lb (41 N·m).
3. Push the wire(s) onto the spark plug(s)
(Figure 39).
Fuel System
Maintenance

Draining the Fuel Tank

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 assure
fuel tank drains completely. Then disengage
the power take off (PTO), set the parking
brake, and turn the ignition key to off. Remove
the key.
2. Close the fuel shut-off valve at the fuel tank
(Figure 41).
3. Squeeze the ends of the hose clamp together
and slide it up the fuel line away from fuel filter
(Figure 41).
4. Pull the fuel line off the fuel filter (Figure 41).
Open the fuel shut-off valve and allow the
gasoline to drain into a gas can or drain pan.
Note: Now is the best time to install a new
fuel filter because the fuel tank is empty. Refer
to Replacing the Fuel Filter.
5. Install the fuel line onto the fuel filter. Slide
the hose clamp close to the valve to secure the
fuel line.
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