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Maintenance
Note: Determine the left and right sides of the machine
from the normal operating position.
Supporting the Cutting Unit
Whenever you need to tip the cutting unit to expose the
bedknife/reel, prop up the rear of the cutting unit to ensure
that the nuts on the back end of the bedbar-adjusting screws
are not resting on the work surface
Figure 10
1. Prop (not provided)
Adjusting the Bedknife-to-Reel
Contact
Adjusting the Bedknife Daily
Prior to mowing each day, or as required, verify proper
bedknife-to-reel contact. Perform this procedure 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.
•
If no contact is evident, adjust the bedknife as
follows
A. Turn the bedbar adjusting screws clockwise
(Figure
11), 1 click at a time, until you feel and
hear light contact.
Note: The bedbar adjusting screws have
detents corresponding to 0.018 mm (0.0007
inch) bedknife movement for each indexed
position.
(Figure
10).
2. Bedbar-adjusting-screw
nut (2)
1
1. Bedbar adjusting screw
B. Insert a long strip of cutting performance
paper (Toro Part No. 125-5610) between
the reel and bedknife, perpendicular to the
bedknife
reel forward; it should cut the paper; if not,
repeat steps
•
If excessive contact/reel drag is evident, 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 you do not maintain light contact,
the bedknife/reel edges will not sufficiently
self-sharpen, and dull cutting edges will result after
a period of operation. If you maintain excessive
contact, bedknife/reel wear will be accelerated,
uneven wear can result, and the quality of cut may
decline.
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.
Occasionally run a file across the front edge to remove
this burr to improve cutting.
After extended running, a ridge will eventually develop
at both ends of the bedknife. Round off these notches
or file them flush with the cutting edge of the bedknife
to ensure smooth operation.
Adjusting the Bedknife to the Reel
Use this procedure during initial cutting-unit setup and after
grinding, backlapping, or disassembling the reel. This is not a
daily adjustment.
1. Position the cutting unit on a flat, level work surface.
2. Tip the cutting unit to expose the bedknife and reel.
9
Figure 11
(Figure
12), then slowly rotate the
A
and
B
until it does.
2
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