Checking Pto Drive Belt Tension; Extending Pto Drive Belt Life - Toro 78452 Operator's Manual

52" side discharge mower tractors
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Where to Add Grease
1.
Lubricate the blade spindles (Fig. 35).
Figure 35
Checking PTO Drive Belt
Tension
Check the PTO drive belt tension after 5 hours of
operating with a new belt, then every 50 hours or
once a year, whichever occurs first.
1.
Check the tension indicators on each side of the
pulley box. If the tension indicators are not in
the same position on both the left and right
sides, release the belt tension and turn the
adjustment knob. Push the belt tension release
arm back toward the pulley box to tension the
belt
(Fig. 36).
2.
Repeat step 1 until the indicators move to the
same position.
3.
Once the indicators are in the same position on
both sides, swing the tension release arm into the
pulley box by moving it into the position shown
in Fig. 35.
2
1. Belt tension release arm
2. Belt tension indicator (2)
3. Belt tension adjustment
knob
m–3468

Extending PTO Drive Belt Life

The PTO drive belt will provide a long service life if
properly installed and operated. Check the following
items to help extend belt life.
Maintain correct belt tension.
Maintain correct mower level.
Maintain correct blade slope in transport.
Adjust the position of the cutter deck belt guide.
Replace damaged pulleys.
Always operate engine–powered attachments at
full throttle.
Avoid engaging the PTO when the cutter deck 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 cutter deck of any buildup of
grass clippings.
Use low range or reduce ground speed when
mowing in heavy conditions or when mulching
or bagging.
Maintenance
1
Figure 36
4. Seating position for
tension arm
5. Belt tension released
4
3
5
m–3458
21

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