Toro 30410 Operator's Manual page 27

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 51.
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 51.
Figure 26
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 51.
27
4. Shims
5. Axle mounting holes