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Prior to mowing each day, or as required, check each
cutting unit to verify proper bedknife-to-reel contact.
This must be performed regardless of whether the
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. If no
contact is evident, turn the bedknife adjusting
knobs clockwise, 1 click at a time, until you feel
and hear light contact.
Note:
The reel must cut one sheet of paper,
when inserted at a right angle to the bedknife, at
both ends and the center of the reel.
Note:
The adjustment knobs have detents
corresponding to 0.023 mm (0.0009 inch)
bedknife movement for each indexed position.
3.
If excessive contact/reel drag is evident, either
backlap, reface the front of the bedknife, or
grind 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 light contact is not maintained,
the bedknife/reel edges will not sufficiently
self-sharpen and dull cutting edges will
result after a period of operation. If excessive
contact is maintained, bedknife/reel wear will
be accelerated, uneven wear can result, and
quality of cut may be adversely affected.
Note:
As the reel blades continue to run against
the bedknife, a slight burr will appear on the front
cutting edge surface along the full length of the
bedknife. To improve the cutting performance,
occasionally run a file across the front edge to
remove this burr.
After extended running, a ridge will eventually
develop at both ends of the bedknife. You
must round off these notches or file them flush
with the cutting edge of the bedknife to ensure
smooth operation.
Note:
Over time, the chamfer
need to be ground as it is only designed to last
40% of the bedknife life.
1. Lead-in chamfer on right
2. 6 mm (0.25 inch)
Adjusting the Bedknife to the Reel
Use this procedure to set the bedknife to the reel and
to check the condition of the reel and bedknife and
their interaction. After completing this procedure,
always test the cutting unit performance under your
field conditions. You may need to make further
adjustments to obtain optimal cutting performance.
Important:
reel or you will damage it.
•
•
You will need the following tools to complete this
procedure:
•
•
(Figure
16) will
1.
11
Figure 16
end of bedknife
Note:
Do not make lead-in chamfer too large
as it may cause turf tufting.
Do not overtighten the bedknife to the
After backlapping the cutting unit or grinding the
reel, you may need to mow with the cutting unit for
a few minutes and then perform this procedure
to adjust the bedknife to the reel as the reel and
bedknife adjust to each other.
You may need additional adjustments if the turf is
extremely dense or your cutting height is very low.
Shim, 0.05 mm (0.002 inch)—Part No. 125-5611
Cutting performance paper—Part No. 125-5610
Position the cutting unit on a flat, level work
surface. Turn the bedbar-adjusting screws
counterclockwise to ensure that the bedbar does
not contact the reel
3. 1.5 mm (0.060 inch)
(Figure
17).
g031270
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