Toro 30581 Groundsmaster 580-D Operator's Manual page 50

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9
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Figure 65
1. Slide plate
2. Motor mount
3. Drive motor
4. Drive pulley
5. Taper lock bushing
6. Compression spring
5. Replace belt(s) as required. Install on pulleys as shown
in figure 66.
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2
Figure 66
1. Top and middle grooves
2. Bottom grooves
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6
7
9
2
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12
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7. Spring holder
8. Slide bar
9. Adjusting screw
10. Tensioner bolt
11. Height gauge
12. Center deck spindle
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4
3. Top grooves
4. Top and middle grooves
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6. Position motor mount onto deck while routing belt
around drive pulley (Fig. 65). Be careful not to bend,
twist, kink or damage flexible hydraulic lines.
7. Tighten (4) capscrews securing motor mount to deck.
8. Check the drive pulley (Fig. 65) height as follows:
Slide the height gauge (Fig. 65) under drive pulley (not
under hub).
Equally tighten or loosen (3) adjusting screws (Fig. 65)
until bottom of pulley rests on height gauge
(approximately 1–1/2").
Tighten nuts to lock adjustment. Remove height gauge.
9. Tighten tensioner bolt until springs are compressed to
dimension shown in figure 63.
10. Tighten jam nut securing adjustment (Fig. 63).
11. Tighten (4) capscrews securing slide plate to motor
mount (Fig. 63).
12. Check idler arm stop screw (Fig. 67). If distance
between idler arm and stop screw is not approximately
.38", adjust as follows:
Loosen jam nuts on stop screw.
Thread screw in or out until desired distance is attained.
Tighten jam nuts.
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.38"
Figure 67
1. Idler arm
13. Replace deck covers.
Outboard Cutting Units
Note: To remove lower belt, the other two belts must first
be removed.
1. Position machine on level surface, lower cutting unit to
shop floor, engage parking brake, shut engine off and
remove key from ignition switch.
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2. Stop screw