off these notches or file them flush with the
cutting edge of the bedknife to ensure smooth
operation.
Adjusting the Bedknife after
Grinding, Backlapping, or
Disassembly
Use this procedure after grinding, backlapping, or
disassembling the reel. This is not a daily adjustment.
Note:
For eFlex cutting units, the reel-to-bedknife
contact has a significant impact on energy
consumption. Very light contact is best for cutting
performance and battery consumption.
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 screws are not resting on the
work surface (
3.
Rotate the reel so that 1 of the blades crosses
the bedknife edge between the first and second
bedknife screw heads located on the right side
of the cutting unit.
4.
Make and identifying mark on the blade where it
crosses the bedknife edge.
Note:
Doing 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
.
6.
Turn the right bedbar adjusting screw (
)
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
screw heads.
8.
Repeat steps
through
for the left side of the
cutting unit and left bedbar adjusting screw.
9.
Repeat steps
and
until there is light pressure
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 screw
clockwise 3 click.
Note:
Each click on the bedbar adjusting screw
moves the bedknife 0.018 mm (0.0007 inches).
Do not overtighten the adjusting screws.
Turning the adjusting screw clockwise moves
the bedknife edge closer to the reel. Turning the
adjusting screw counterclockwise moves the
bedknife edge away from the reel.
11.
Test the cutting performance by inserting a long
strip of cutting performance paper between the
reel and bedknife, perpendicular to the reel and
bedknife (
). Slowly rotate the reel
forward to cut the paper.
g014411
Figure 10
Note:
If excessive contact/reel drag is evident, you
may need to backlap or grind the reel and bedknife to
achieve the sharp edges needed for precision cutting.
Grinding the Bedknife
Relief-Grinding the Reel
The new reel has a land width of 0.76 to 1.27 mm
(0.030 to 0.050 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 0.76 to 1.27 mm (0.030 to
0.050 inch) wide (
.
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