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Figure 104
1. U-bolt
4.
Start the engine and slowly raise the center
cutting unit.
5.
Slowly raise each wing cutting until the center
of gravity shifts and the deck starts to rotate
into the upright position. Stop the engine and
remove the ignition key
Pivoting the Front Cutting
Unit Down
1.
Slowly lower wing cutting units until the center of
gravity shifts and the center cutting unit rotates
downward.
2.
Sit on the seat, start the engine, and lower the
center cutting unit until it is slightly off of the floor.
3.
Secure the height-of-cut chains to the rear of
the cutting unit.
4.
Pivot dampers upward into position and secure
with clevis pin and cotter pin.
Adjusting the Cutting Unit
Pitch
Measuring the Cutting Unit Pitch
Cutting unit pitch is the difference in height-of-cut from
the front of the blade plane to the back of the blade
plane. Toro recommends a blade pitch of 8 to 11 mm
(5/16 to 7/16 inch). That is the back of the blade plane
is 8 to 11 mm (5/16 to 7/16 inch) higher than the front.
1.
Position the machine on a level surface on the
shop floor.
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2. Height-of-cut chain
2.
Set the cutting unit to the desired height-of-cut.
3.
Rotate 1 blade so that it points straight forward.
4.
Using a short ruler, measure from the floor to
the front tip of the blade. Rotate the blade tip to
the rear and measure from the floor to the tip
of the blade.
5.
Subtract the front dimension from the rear
dimension to calculate the blade pitch.
Adjusting the Front Cutting Unit
1.
Loosen the jam nuts on the top or bottom of the
height-of-cut chain U-bolt
2.
Adjust the other set of nuts to raise or lower the
rear of the cutting unit and attain the correct
cutting unit pitch.
3.
Tighten the jam nuts.
1. U-bolt
Adjusting the Wing Cutting Units
1.
Remove the cap screws and nuts securing the
castor arm to the castor fork
2.
Reposition the shims, as required, to raise or
lower the castor wheel until the cutting unit has
the correct pitch.
3.
Install the cap screws and nuts.
67
(Figure
105).
Figure 105
2. Height-of-cut chain
(Figure
106).
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