7. Install blades. Insert four blades at 90°
apart to hold up upper blade holding ring.
Blades with beveled ends must be proper-
ly oriented to blade holding rings. Hold
blade at top and bottom, between thumb
and forefinger. Ease blade in at an angle,
bottom first, so that blade slides over
retaining ring (Figure 73); blade should
then slip into place and rest against back-
ing ring. Install remaining blades.
NOTE:
Do not cut retaining ring with edge
of blade. Blades must be straight up and down
and pushed against backing ring. Upper ring
may be adjusted up or down slightly to ease
blade installation.
8. Tighten screws, 1/4 turn at a time, in
sequence, until tight.These screws tighten
down to tops of columns and it is column
length that determines pressure on blades.
If screws feel springy when tightening, one
or more blades are not seated properly.
9. Install four double end screws in remain-
ing columns, shorter threaded end down,
and tighten. Microcut head is now com-
pletely assembled and ready for installa-
tion on machine.
MAINTENANCE
Microcut Head
69
Figure 73 — Installing microcut blades
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