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Installing the Spark Plug
1. Install the spark plug and metal washer.
Note: Make sure that the air gap is set correctly.
2. Tighten the spark plug to 15 ft-lb (20 N m).
3. Connect the wire to the spark plug (Fig. 23).
4. Close the hood.
Checking the Tire Pressure
Maintain the air pressure in the front and rear tires at 20 psi
(138 kPa). Check the pressure at the valve stem (Fig. 25)
after every 25 operating hours or yearly, whichever occurs
first. Check the tires when they are cold to get the most
accurate pressure reading.
Figure 25
1. Valve stem
Draining 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 tractor so that the left front side is slightly
lower than the right side to ensure that the fuel tank
drains completely.
2. Disengage the blade (PTO).
3. Shift the ground speed lever into Neutral.
4. Set the parking brake.
5. Stop the engine and wait for all moving parts to stop.
6. Remove the ignition key.
7. Open the hood.
8. Squeeze the ends of the hose clamp together and slide it
up the fuel line toward the fuel tank (Fig. 26).
1. Hose clamp
1
2. Fuel line
9. Pull the fuel line off the fuel filter (Fig. 26) and allow
gasoline to drain into a fuel container or a drain pan.
Note: Now is the best time to install a new fuel filter
m-1872
because the fuel tank is empty.
10. Install the fuel line onto the fuel filter.
11. Slide the hose clamp close to the fuel filter to secure
both the fuel line and the fuel filter.
Replacing the Fuel Filter
Replace the fuel filter after every 100 operating hours or
yearly, whichever occurs first. The best time to replace the
fuel filter (Fig. 26) is when the fuel tank is empty. Never
install a dirty fuel filter after it has been removed from the
fuel line.
1. Disengage the blade (PTO).
2. Shift the ground speed lever into Neutral.
3. Set the parking brake.
4. Stop the engine and wait for all moving parts to stop.
5. Remove the ignition key.
6. Open the hood.
7. Squeeze the ends of the hose clamps together and slide
them away from the old fuel filter (Fig. 26).
8. Remove the old fuel filter from the fuel line.
9. Install a new fuel filter and move the hose clamps close
to it.
10. Close the hood.
27
2
1
3
Figure 26
3. Filter
m-1873
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