Craftex CX204N, User Manual

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16
RIVING KNIFE
The riving knife is a metal plate which
prevents the newly cut work-piece from
pinching at the backside of the blade and
causing kickback. Basically the riving knife
does the same job as the spreader. But the
main difference is that the riving knife is
installed below the blade height while the
spreader is installed higher than the blade.
The riving knife is installed when doing non-
through cuts using a standard table saw
blade and for the cutting operations when
the blade does not cut all the way through
thickness of the work-piece.
Height Difference
The riving knife should be installed with
1mm to 5mm height difference with the
blade height. It is recommended to keep
3mm to 8mm distance between the blade
(from the carbide tip) and the riving knife.
Figure-25 Riving knife
SCORING SAW BLADE
The CX204N can run two blades at the
same time. One is a regular circular saw
blade and the other is a small blade that is
installed in front of the main one. The
smaller blade rotates in the opposite
direction to the main blade, cutting from the
underside of the panel, where the damage
usually happens. The scoring blade
eliminates tear-out and chipping.
ADJUSTING THE
SCORING BLADE
The scoring blade can be adjusted side to
side to align with the main blade. It also has
a height adjustment to raise or lower the
blade below the table top if desired.
The adjustments can be done by rotating
the screws located in the small holes on the
table. See figure-26
WARNING!
DO NOT use the riving knife with dado
blades. If used, the riving knife will be
higher than the dado blade and the work-
piece will hit the riving knife.