15
Operation
The mortiser has a magnetic switch which is a
valuable safety feature. Should electrical power
be cut off while the machine is operating, the
magnetic switch will prevent the machine from
immediately re-starting when power is restored.
To re-start the mortiser you must press the
START button.
The following is a general procedure for
operating the mortiser:
1. Set depth stop to the required depth of cut.
2. Place workpiece on table and clamp it with
the vise. Set work stop if needed.
3. Use the handwheels to position the
workpiece below the chisel.
4. Adjust the table stops according to the
length of cut required, and tighten the wing
screws.
5. Turn on machine and feed chisel and auger
steadily into the workpiece.
IMPORTANT: The rate of feed must be fast
enough to prevent burning at the tip of the
auger, but not so fast as to cause the
machine to slow or stall. The different rates
of feed for different woods must be learned
by experience.
6. After the first cut, the workpiece is moved
along with the right handwheel for each
successive cut. The direction of movement
must allow the chips to clear freely. Move
the workpiece so that the slot in the chisel is
releasing chips into the already cut part of
the workpiece. See Figure 19.
Do not have the chisel slot
against the blind end of the mortise, as the
chips will not be able to clear the chisel. This
can cause overheating and possible
breakage of chisel or auger.
When cutting deep mortises, make the cut in
several stages of approximately 1" each, to
allow chips to clear.
To prevent breakout at the back of the
workpiece when cutting through mortises, use a
piece of scrap material under the workpiece.
Figure 19
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