Checking The Mismatch Between Cutting Units - Toro 31598 Operator's Manual

1. Gage wheel
2. Slide the shaft out of the lower bracket holes, align the
roller with the top holes, and install the shaft
32).
1. Roller
3. Install the screw and nut to secure the assemblies.
Adjusting the Gage Wheels
1. Remove the bolt and nut securing the gage wheel to
the cutting unit brackets
2. Align the roller and spacer with the top holes in the
brackets and secure them with the bolt and nut.
Figure 31
2. Screw and nut
Figure 32
2. Roller shaft, screw and nut
(Figure 31).
Checking the 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 (page
2. Check and adjust front and rear tractor tire pressure.
The correct air pressure in the front tires is 345 kPa (50
psi) and the rear tires is 207 kPa (30 psi).
3. Check and adjust all castor tire pressures to 345 kPa
(50 psi).
4. Check lift and counterbalance pressures with engine at
high idle using test ports defined in Hydraulic Systems
Test Ports. Adjust as required.
5. Check for bent blades; refer to
Blade (page 61)
6. Cut grass in a test area to determine if all cutting units
(Figure
are cutting at the same height.
7. If cutting unit adjustments are still needed, find a flat
surface using a 2 m (6 foot) or longer straight edge to
ensure the surface is flat.
8. To ease measuring blade plane, raise the height of
cut to the highest position; refer to
Height-of-Cut (page
9. Lower cutting units onto the flat surface. Remove the
covers from the top of the cutting units.
Side Cutting Units
1. Rotate blade of each spindle until the ends face forward
and backward
2. For the outside blade spindle only, equally adjust the
1/8 inch shims on the front castor forks to match the
desired height of cut
3. Measure from floor to the front tip of the cutting blade.
4. Rotate the blade 180° and measure from floor to the
tip of the cutting blade.
5. The rear of the blade should be 7.5 mm (0.300 inch)
higher than the front. If adjustment is required, adjust
1/8 inch shims on rear castor forks.
Matching Height Of Cut Between Cutting Units
1. Position blade side to side on outside spindle of both
side cutting units. Measure from the floor to the tip of
the cutting edge on both units and compare. These
numbers should be within 3 mm (1/8 inch) of each
other. Make no adjustment at this time.
2. Position blade side to side on inside spindle of side
cutting unit and corresponding outside spindle of front
cutting unit. Measure from the floor to the tip of the
cutting edge on inside edge of side cutting unit to
corresponding outside edge of front cutting unit and
compare.
32
29).
Checking for a Bent
procedure in Mower Maintenance.
Adjusting the
29).