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3. Check the gap between the center and side electrodes
and bend the side electrode if the gap is not correct
(Fig. 35).
Installing the Spark Plug
1. Install the spark plug(s).
Note: Ensure that the air gap is set correctly.
2. Tighten the spark plug(s) to 16 ft-lb (22 N m).
3. Connect the wire(s) to the spark plug(s) (Fig. 34).
Replacing the Fuel Filter
Replace the fuel filter after every 200 operating hours or
yearly, whichever occurs first.
Never install a dirty filter if it is removed from the fuel line.
1. Disengage the PTO, move the motion control levers to
the neutral locked position, and set the parking brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Allow the machine to cool down.
4. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
5. Close the fuel shutoff valve (Fig. 36).
1
2
3
4
Figure 36
1. Fuel shutoff valve
2. Hose clamp
6. Squeeze the ends of the hose clamps together and slide
them away from the filter (Fig. 36).
(s)
m–7702
3. Fuel line
4. Fuel filter
32
7. Remove the filter from the fuel lines.
8. Install a new filter and move the hose clamps close to
the filter (Fig. 36).
9. Open the fuel shutoff valve.
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 machine on a level surface to ensure that the
fuel tanks drain completely.
2. Disengage the power takeoff (PTO), set the parking
brake, stop the engine, and remove the key.
3. Close the fuel shutoff valve (Fig. 36).
4. Loosen the hose clamp at the fuel filter and slide it up
the fuel line away from the fuel filter (Fig. 36).
5. Disconnect the fuel line from the fuel filter (Fig. 36).
6. Open the fuel shutoff valve.
Note: Allow gasoline to drain into a fuel container can
or drain pan (Fig. 36).
Note: Now is the best time to install a new fuel filter
because the fuel tank is empty.
7. Install the fuel line onto the fuel filter. Slide the hose
clamp close to the fuel filter to secure the fuel line
(Fig. 36).
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