Operator's Manual

10
Cutting Unit Attitude
Cutting unit attitude refers to the position of the cutting
edge of the bedknife behind the center line of the reel
(bottom–dead–center) (Fig. 11). This can be varied by
changing the position of the front and rear rollers at a
given height-of-cut.
Attitude
Bottom Dead
Center
Figure 11
The farther the cutting edge is behind the reel center line,
the more aggressive the cutting unit will cut. Conversely,
moving the cutting edge forward makes the cutting unit
cut less aggressively.
The previous procedures used nominal cutting unit
attitudes which work well in most turf conditions. The
table below shows the relationship between cutting unit
attitude and turf conditions for improved after cut
appearance. It is important that all cutting units, on a
machine, have the same attitude.
Turf Condition
Cutting Unit Attitude
More
Aggressive
Less
Aggressive
Cool season grass X
Warm season grass X
Deep leaf canopy X
Shallow leaf canopy X
Higher height-of-cut X
Lower height-of-cut X
Checking/Adjusting the
Cutting Unit Attitude
For setting consistent cutting unit attitude, Toro
strongly recommends using a two-screw gauge bar,
Toro part no. 98-1852 (Fig. 12). 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.
HOC SETTING
ATTITUDE
2.00”
(51 mm)
First Screw
Second Screw
Figure 12
1. Place an angle indicator, Toro Part No. 99-3503, on the
bedknife and record the bedknife angle (Fig. 13).
1
Figure 13
1. Bedknife angle
2. Using a two-screw gauge bar, Toro Part No. 98-1852,
set the first screw to the desired height-of-cut.