Operation; Cutting Unit Characteristics; Daily Adjustments Of The Cutting Unit - Toro 04613 Operator's Manual

Operation

Note: Determine the left and right sides of the machine
from the normal operating position.

Cutting Unit Characteristics

The dual knob bedknife-to-reel adjustment system
incorporated in this cutting unit simplifies the adjustment
procedure needed to deliver optimum mowing performance.
The precise adjustment possible with the dual knob/bedbar
design gives the necessary control to provide a continual
self-sharpening action-thus maintaining sharp cutting edges,
ensuring good quality-of-cut, and greatly reducing the need
for routine backlapping.
Daily Adjustments of the
Cutting Unit
Prior to mowing each day, or as required, check each cutting
unit to verify proper bedknife-to-reel contact. This must be
performed even though quality of cut is acceptable.
1. Lower the cutting units onto a hard surface, shut off
the engine, and remove the ignition key.
2. Slowly rotate the reel in a reverse direction, listening
for reel-to-bedknife contact.
Note: The adjustment knobs have detents
corresponding to 0.018 mm (0.0007 inch) bedknife
movement for each indexed position. Refer to
Adjusting the Bedknife to the Reel.
3. Test the cutting performance by inserting a long strip
of cutting performance paper (Toro part number
125-5610) between reel and bedknife, perpendicular
to the bedknife (Figure 12). Slowly rotate the reel
forward; it should cut the paper.
Figure 12
Note: If excessive contact/reel drag is evident it will
be either necessary to backlap, reface the front of the
bedknife, or regrind the cutting unit to achieve the
sharp edges needed for precision cutting (Refer to the
Toro Manual for Sharpening Reel and Rotary Mowers,
Form No. 09168SL).
Important: Light contact is preferred at all times. If
you do not maintain light contact, the bedknife and reel
edges will not sufficiently self-sharpen and will dull after
a period of operation. If you maintain excessive contact,
the bedknife and reel will wear quicker, wear unevenly,
and the quality of cut may be adversely affected.
Note: After extended running, a ridge will eventually
develop at both ends of the bedknife. Round off or file these
notches flush with the cutting edge of the bedknife to ensure
smooth operation.
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