Toro 30410 Operator's Manual page 26

Figure 25
1. Gage wheel
2. Align the roller and spacer with the top holes in the
brackets and secure them with the bolt and nut.
Correcting Mismatch Between Cutting
Units
Due to differences in grass conditions and the
counterbalance setting of the traction unit, it is advised
that grass be cut and appearance checked before formal
cutting is started.
1. Set all cutting units to the desired height of cut;
refer to Adjusting the Height of Cut table in
Specifications , page 17.
2. Check and adjust front and rear tractor tire pressure
to 25-30 psi (172-207 kPa).
3. Check and adjust all castor tire pressures to 50 psi
(345 kPa).
4. Check charge and counterbalance pressures
with engine at high idle using test ports defined
in Hydraulic Systems Test Ports. Adjust
counterbalance setting to be 220 psi (1517 kPa)
higher than charge pressure reading.
5. Check for bent blades; refer to Checking for a Bent
Blade procedure in Mower Maintenance, page 50.
6. Cut grass in a test area to determine if all cutting
units are cutting at the same height.
7. If cutting unit adjustments are still needed, find a flat
surface using a 6 foot (2 m) or longer straight edge.
8. To ease measuring blade plane, raise the height of
cut to the highest position; refer to Adjusting the
Height of Cut.
9. Lower cutting units onto the flat surface. Remove
the covers from the top of the cutting units.
10. Loosen the flange nut, securing the idler pulley, to
release the belt tension on each cutting unit.
Front Cutting Unit Setup
Rotate blade on each spindle until the ends face forward
and backward. Measure from the floor to the front
tip of the cutting edge. Adjust 1/8 inch shims on
front castor fork(s) to match height of cut to decal
(Figure 26); refer to Adjusting the Cutting Unit Pitch
procedure in Mower Maintenance, page 50.
1. Castor wheel
2. Tensioning cap
3. Spacers
Side Cutting Unit Setup
Rotate blade of each spindle until the ends face forward
and backward. Measure from the floor to the front
tip of the cutting edge. Adjust 1/8 inch shims on
front castor arm(s) to match height of cut to decal
(Figure 27). For the outside blade spindle only, refer to
Adjusting the Cutting Unit Pitch procedure in Mower
Maintenance, page 50.
26
Figure 26
4. Shims
5. Axle mounting holes