Setting Cutting Unit Attitude - Toro 5 Operator's Manual

B. Setting Cutting Unit Attitude
IMPORTANT: Cutting unit "attitude" has a
significant impact on the performance of the
cutting unit. Attitude refers to the angle of the
bedknife relative to the ground (Fig. 6).
Adjustable front and rear brackets allow for
variable adjustment of cutting unit attitude
within the height-of-cut range. All cutting
units on a given machine must be set to the
same attitude, otherwise after-cut appearance
could be negatively affected.
ATTITUDE
Figure 6
The best cutting unit attitude is dependent on your
turf conditions and desired results. Experience with
the cutting unit on your turf will determine the best
setting to use. Cutting unit attitude can be adjusted
throughout the cutting season to allow for various turf
conditions.
In general, less aggressive attitudes (example: 2
degrees) are more appropriate for warm season
grasses (Bermuda, Zoysia) while cool season grasses
(Bluegrass, Rye) may require more aggressive
attitudes (example: 6 degrees). More aggressive
attitudes cut more grass off by allowing the spinning
reel to pull more grass up into the bedknife. An angle
that is too flat (attitude less than 1 degree) may allow
the bedbar or other parts of the cutting unit to drag in
the turf causing tufting. Therefore, minimum
recommended attitude is 1 degree.
For setting consistent cutting unit attitude, Toro
strongly recommends using a two-screw gauge bar,
Toro part no. 98-1852 (Fig. 7). The first screw is set
for height-of-cut, and the second screw is set for
cutting unit attitude. The second screw setting is an
easy method of transferring cutting unit attitude to all
cutting units on a machine.
2.00"
ATTITUDE
(51 mm)
"A"
Second Screw
Figure 7
Setting Attitude for New Cutting Units
Table 1 lists starting dimensions for setting up a new
cutting unit with attitudes of 2, 4, 6 and 8 degrees.
Note: The second screw setting will change
throughout the life of the bedknife and
reel due to wear, even if the
height-of-cut is not changed.
Therefore, after initial set up use
Checking and Adjusting Attitude for
Used Cutting Unit procedure.
1. Using a two-screw gauge bar, Toro Part No.
98-1852, set first screw to desired height-of-cut.
This setting is from the bar face to the underside
of the screw head (Fig. 7).
2. Using Table 1, set the attitude, "A," for the
second screw on the gauge bar. This setting is
from the bar face to the end of the screw (Fig. 7).
Setting Height-of-Cut
HOC SETTING
First Screw
9