Pivoting The Front Cutting Unit Down; Adjusting The Cutting Unit Pitch - Toro 30410 Operator's Manual

Figure 84
1. Cable
Pivoting the Front Cutting Unit
Down
1. With the help of another person, hold the cutting
unit upright, remove the hairpin cotter securing the
cable end, and remove the cable from the pin.
2. Pivot (tilt) the cutting unit downward.
3. Store the cable under the operator's platform.
4. Sit on the seat, start the engine, and lower the cutting
unit until it is slightly off of the floor.
5. Secure the height-of-cut chains to the rear of the
cutting unit.
6. Pivot transport latch 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 1/4 inch (6
mm). That is the back of the blade plane is 1/4 inch (6
mm) higher than the front.
1. Position the machine on a level surface on the shop
floor.
2. Set the cutting unit to the desired height-of-cut.
3. Rotate 1 blade so that it points straight forward.
2. Pin
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 (Figure 85).
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. Height-of-cut chain
Adjusting the Side Cutting Units
Service Interval: Every 800 hours
1. Remove the tensioning cap from the spindle
shaft and slide the spindle out of the castor arm
(Figure 86). Reposition the shims, as required, to
raise or lower the castor wheel until the cutting unit
has the correct pitch.
2. Install the tensioning cap.
51
Figure 85
2. U-bolt