Toro 78449, Руководство оператора, Страница: 17 / 20

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m–3458
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3
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4
5
Figure 34
1. Belt tension release arm
2. Belt tension indicators
3. Belt tension adjustment
knob
4. Seating position for
tension arm
5. Belt tension released
2. Repeat step 1 until the indicators move to the same
position.
3. Swing the tension release arm into the pulley box by
moving it into the position shown in Figure 34.
Extending PTO Drive Belt Life
The PTO drive belt will provide a long service life if
properly installed and operated. Check the following to
help extend belt life.
•
Maintain correct belt tension.
•
Maintain correct mower level.
•
Maintain correct blade slope in transport.
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Adjust the position of the mower belt guide.
•
Replace damaged pulleys.
•
Always operate engine-powered attachments at full
throttle.
•
Avoid engaging the PTO when the mower is in tall
uncut grass or weeds.
•
Cut tall grass and weeds with the mower in its highest
position, making a second pass cutting at desired height.
•
Regularly clean the mower of any buildup of grass
clippings.
•
Use low range or reduce ground speed when mowing in
heavy conditions or when mulching or bagging.
Replacing the Blade Drive Belt
Removing the Blade Drive Belt
1. Remove the mower; refer to Removing the Mower,
page 11.
2. Remove the pulley cover mounting screws and pulley
covers from the blade pulleys (Fig. 35).
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3
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m-3525
5
Figure 35
Top View
1. Pulley cover screw
2. Pulley cover
3. Belt guide
4. Mower belt
5. Spring
3. Release the spring (Fig. 35).
4. Remove the belt from the pulleys (Fig. 35).
Installing the Blade Drive Belt
1. Install the new belt around the blade pulleys and the
idler pulleys.
2. Attach the spring (Fig. 35).
3. Install the left and right pulley covers with the
mounting screws (Fig. 35).
4. Install the mower; refer to Installing the Mower,
page 5.
Washing the Mower
After each use, wash the underside of the mower to prevent
grass build-up and improve performance.
1. Park the tractor on a hard level surface.
2. Apply the parking brake, start the tractor, and raise the
attachment lift.
3. Get off the tractor. Place the mower height-of-cut lever
in the lowest cut position.
4. Lower the attachment lift, stop the engine, and remove
the ignition key.
5. Attach a hose coupling to the end of the washout fitting
and turn water on high (Fig. 36).
Note: Spread petroleum jelly on the washout fitting o-ring
to help the coupling slide on easier and protect the o-ring.