Toro GROUNDSMASTER 580-D 30581 Operator's Manual page 45

1. High-range height of cut
2. Move to highest height-of-cut setting
2. Place a flat 4 X 8 sheet of plywood at least 20mm
thick down on a level surface and lower the cutting
unit onto the flat surface.
1. High range height of cut
2. Move to the underside of the castor arm
3. Castor arm
3. Rotate the blade so the ends face fore and aft.
Measure from a flat surface to front tip of the
cutting blade and record the dimension. Rotate the
same blade so the opposite end faces forward and
repeat the measurement. The difference between the
two measurements must not exceed 3 mm. If
difference exceeds 3 mm, the blade is bent. Replace
it. Use the same procedures to measure all blades.
4. Rotate the blade so the ends face fore and aft.
Measure from the flat surface to the front of the
cutting blade and record the dimension. Repeat the
process with all blades and compare measurements.
The maximum difference allowed between any two
adjacent blades is 6 mm. The maximum difference
allowed between the highest and lowest blade
measurement is 10 mm. If measurements do not fit
Figure 67
Figure 68
recommended standards, add shims between the
cutting deck and spindle housing; proceed to step 6.
If the measurements meet standards, proceed to step
5.
5. Rotate the blades so the tips lineup with one
another. Tips of adjacent blades must be within 3
mm of each other. If tips are not within 3 mm of
one another, add shims between the spindle housing
and the bottom of cutter deck; proceed to step 6.
6. Remove the locknuts securing the spindle housing
to the deck in the area where shims are to be added.
To lower a blade, add a shim (Part No. 3256-24), to
each mounting bolt between the spindle housing
and cutter deck. Repeat step 5. Continue the process
until blade tips are within the required dimensions.
IMPORTANT: Do not exceed three shims at any
hole location. If more than one shim is added to
any hole location, install decreased amounts of
shims in adjacent holes.
ADJUSTING WINGLET
STABILIZERS
If the front winglet decks bounce excessively when in
transport, an adjustment to the winglet stabilizers is
required.
1. Park the machine on a level surface, engage the
parking brake, lower the front deck completely to
the ground and turn the engine OFF
2. Loosen the capscrews securing the winglet stabilizer
brackets to the deck and move the brackets outward.
Maintenance
45