Height-Of-Cut Chart Terms - Toro 03721 Operator's Manual

Use the following chart to determine which
bedknife is best suited for the desired height of
cut.
Bedknife
Low HOC (Optional)
EdgeMax® (Optional)
Standard (Production)
Heavy Duty (Optional)
* Warm-season grasses may require the Low HOC bedknife for 12.7 mm (0.500 inch) and below.
1. Bedknife lip height

Height-of-Cut Chart Terms

Height-of-Cut Setting (HOC)
This corresponds to the desired height of cut.
Bench-Set Height of Cut
The bench-set height of cut is the height at which
the top edge of the bedknife is set above a flat level
surface that contacts the bottom of both the front roller
and the rear roller.
Effective Height of Cut
This is the actual height that the grass has been cut.
For a given bench-set height of cut, the actual height
of cut will vary depending on the type of grass, time
of year, turf, and soil conditions. The cutting-unit
setup (aggressiveness of cut, rollers, bedknives,
attachments installed, turf-compensation settings,
etc.) will also affect the effective height of cut. Check
the effective height of cut using the Turf Evaluator
(Model 04399) regularly to determine the desired
bench-set height of cut.
Aggressiveness of Cut
The aggressiveness of cut has a significant impact on
the performance of the cutting unit. Aggressiveness
Bedknife/Height of Cut Chart
Part No.
120-1641 (27 inch)
120-1642 (32 inch)
112-8910 (27 inch)
112-8956 (32 inch)
114-9388 (27 inch)
114-9389 (32 inch)
114-9390 (27 inch)
114-9391 (32 inch)
Figure 21
Bedknife Lip Height
5.6 mm (0.220 inch)
6.9 mm (0.270 inch)
6.9 mm (0.270 inch)
9.3 mm (0.370 inch)
of cut refers to the angle of the bedknife relative to the
ground (Figure
The best cutting-unit setup depends on your turf
conditions and desired results. Experience with the
g006510
cutting unit on your turf will determine the best setting
to use. You can adjust the aggressiveness of cut
throughout the cutting season to allow for various turf
conditions.
In general, less to normal aggressive settings
are more appropriate for warm-season grasses
(Bermuda, paspalum, zoysia) while cool-season
grasses (bent, bluegrass, rye) may require normal to
more aggressive setups. More aggressive setups cut
more grass off by allowing the spinning reel to pull
more grass up into the bedknife.
1. Rear spacers
2. Side-plate mounting flange
Rear Spacers
The number of rear spacers determines the
aggressiveness of cut for the cutting unit. For a given
height of cut, adding spacers below the side-plate
mounting flange increases the aggressiveness of the
cutting unit. All cutting units on a given machine must
be set to the same aggressiveness of cut (number
of rear spacers, Toro Part No. 106-3925); otherwise,
13
Height of Cut
6.4 to 12.7 mm (0.250 to 0.500 inch)
9.5 to 63.5 mm (0.375 to 2.50
inches)*
9.5 to 63.5 mm (0.375 to 2.50
inches)*
12.7 to 63.5 mm (0.500 to
2.50 inches)
22).
Figure 22
3. Aggressiveness of cut
g033976