Height-Of-Cut Chart Terms - Toro 03638 Operator's Manual

assembled components, and so paralleling is
not required. A limited amount of adjustment is
possible by setting the cutting unit on a surface
plate and loosening the side-plate mounting cap
screws (Figure 12).
1. Side-plate mounting cap screws
8. Adjust and tighten the cap screws and torque
the cap screws to 37 to 45 N∙m (27 to 33 ft-lb).

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 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
Figure 12
of cut refers to the angle of the bedknife relative to the
ground (Figure
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. Aggressiveness of cut may be adjusted
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.
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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,
the after-cut appearance could be negatively affected
(Figure 13).
Chain Links
The location at which the lift-arm chain is attached
determines the pitch angle of the rear roller
14).
10
13).
Figure 13
3. Aggressiveness of cut
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(Figure