Kickback - Husqvarna Drill Press Operator's Manual

Ryobi drill press operator's manual
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!
WARNING! Over exposure to vibrations can
result in blood-vessel or nerve injury to
persons suffering with blood circulation
problems. Seek medical attention if you
experience physical symptoms that can be
related to over exposure to vibrations.
Examples of such symptoms are numbness,
lack of feeling, "tickling", "pricking", pain lack
of or a reduction in normal strength, changes
in the colour of the skin or its surfaces. These
symptoms normally appear in the fingers,
hands or wrists.
Cutting technique
The technique described below is of a general character. Check
information for each blade regarding individual cutting characte-
ristics. (For example, a diamond blade requires less feeding
pressure than a abrasive blade).
1. Support the work piece in
such away that you can
predict what will happen
and so it will not pinch.
2. Always cut at full throttle.
3. Start cutting gently, do
not force or squeeze the
blade in.
4. Use a high blade speed.
5. Move the blade slowly
backwards and forwards.
6. Use a small part of the
blade's cutting edge.
7. Only use the blade's
cutting edge when
cutting.
8. Cut with the blade fully
vertical – at right angles
to the work piece.
!
WARNING!
Under all circumstances avoid cutting using
the side of the blade; it will almost certainly
be damaged, break and can cause immense
damage. Only use the cutting section.
!
WARNING!
Do not lean the blade to the side, this can
cause the blade to jam or break with personal
injury as a consequence.
8
– English
SAFETY INSTRUCTIONS
Water cooling
!
WARNING! Water cooling, which is only used
for petrol-driven power cutters and when
cutting concrete, cools the cutting blade and
increases its service life as well as reduce
dust formation (see the section " Abrasive
blades "). Among the disadvantages are
difficulties at very low temperatures, the risk
of damaging the floor and other sections of
the building and risk for slippage.
Sharpening diamond blades
Blades can become dull when the wrong feeding pressure is
used or when cutting some materials such as heavily reinforced
concrete. To force a dull blade results in overheating and finally
the loss of segments (part of the blade).
Sharpen against a soft material such as sandstone or haydite
brick.
Blade vibration
The blade can become out of shape (not round) and vibrate if a
too high feeding pressure is used or if the blade is pressed into
the work piece.
A lower feeding pressure ought to stop the vibration. Otherwise
replace the cutting blade.

Kickback

!
WARNING!
Kickback can occur very suddenly and with
great force. If the following directives are not
followed, it can result in serious or even fatal
injury.
If the sector of the blade illustrated below is used for cutting the
blade can start to climbing and kickback the power cutter
upwards and backwards towards the user with immense force.
How to avoid kickback
1. Never cut with the
segment illustrated in the
diagram.
2. Keep a good balance and
a firm foothold.
3. Use both hands and take
a firm grip with the thumb
and fingers around the
handle.
4. Keep the work piece at a
comfortable distance.
5. Use the cutter at full
throttle.
6. Take care when inserting
the blade in an existing
cut.
7. Never cut above shoulder
height.
8. Be alert to movement of
the work piece or anything
else that can occur, which
could cause the cut to
close and pinch the blade.

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