Relief-Grinding The Reel - Toro Greensmaster 3150 Series Operator's Manual

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.
Note:
Ensure that the nuts on the back of the
bedbar adjusting bolts are not resting on the
work surface (Figure
3. Rotate the reel so that 1 of the blades crosses
the bedknife edge between the first and second
bedknife bolt heads located on the right side of
the cutting unit.
4. Make an identifying mark on the blade where it
crosses the bedknife edge.
Note:
This will make later adjustments easier.
5. Insert a 0.05 mm (0.002 inch) shim between the
blade and the bedknife edge at the point marked
in step 4.
6. Turn the right bedbar adjusting bolt
until you feel light pressure on the shim when
sliding it side-to-side. Remove the shim.
7. For the left side of the cutting unit, slowly rotate
the reel so that the closest blade crosses the
bedknife edge between the first and second bolt
heads.
8. Repeat steps 4 through
cutting unit and left bedbar adjusting bolt.
9. Repeat steps 5 and
at the contact points on both the left and right
sides of the cutting unit.
10. To obtain light contact between the reel and
bedknife, turn each bedbar adjusting bolt
clockwise 3 clicks.
Note:
Each click on the bedbar adjusting bolt
moves the bedknife 0.018 mm (0.0007 inches).
Do not overtighten the adjusting bolts.
Turning the adjusting bolt clockwise moves
the bedknife edge closer to the reel. Turning
the adjusting bolt counterclockwise moves the
bedknife edge away from the reel.
11. Insert a long strip of cutting performance paper
between the reel and bedknife, perpendicular to
the bedknife (Figure
reel forward; it should cut the paper; if not, turn
each bedbar adjusting bolt clockwise 1 clicks
and repeat this step until it cuts the paper.
10).
(Figure
6 for the left side of the
6 until there is light pressure
12), then slowly rotate the
Note:
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).

Relief-Grinding the Reel

11)
The new reel has a land width of 1.3 to 1.5 mm (0.050
to 0.060 inch) and a 30 degree relief grind.
When the land width gets larger than 3 mm (0.120
inch) wide, do the following:
1. Apply a 30 degree relief grind on all reel blades
until the land width is 1.3 mm (0.050 inch) wide
(Figure 13
1. 30 degrees
10
Figure 12
and Figure 14).
Figure 13
Model 03638
2. 1.3 mm (0.050 inch)
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