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Use the following chart to determine which
bedknife is best suited for the desired height of
cut.
Bedknife
Low HOC (Optional)
EdgeMax® Low HOC
(Model 03623)
Extended Low HOC
(Optional)
Extended EdgeMax® Low
HOC (Optional)
EdgeMax® (Model 03621)
Standard (Optional)
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
This 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 and rear rollers.
Effective Height of Cut
This is the actual height 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,
Bedknife/Height of Cut Chart
Part No.
110-4084
137-0832
120-1640
119-4280
137-0833
108-9096
110-4074
Figure 18
Bedknife Lip Height
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
5.6 mm
(0.220 inch)
6.9 mm
(0.270 inch)
6.9 mm
(0.270 inch)
9.3 mm
(0.370 inch)
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
g006510
Cutting unit aggressiveness of cut has a significant
impact on the performance of the cutting unit.
Aggressiveness of cut refers to the angle of the
bedknife relative to the ground
The best cutting unit setup is dependent on your turf
conditions and desired results. Experience with the
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.
13
Height of Cut
6.4 to 12.7 mm
(0.250 to 0.500 inch)
6.4 to 12.7 mm
(0.250 to 0.500 inch)
6.4 to 12.7 mm
(0.250 to 0.500 inch)
6.4 to 12.7 mm
(0.250 to 0.500 inch)
9.5 to 38.1 mm
(0.375 to 1.50 inches)*
9.5 to 38.1 mm
(0.375 to 1.50 inches)*
12.7 to 38.1 mm
(0.500 to 1.50 inches)
(Figure
19).
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