Proxxon LBS/E Manual Del Usuario página 13

kickback forces. The operator can control kickback
forces, if proper precautions are taken.
b) Use special care when working corners, sharp
edges etc. Avoid bouncing and snagging the ac-
cessory. Corners, sharp edges or bouncing have a
tendency to snag the rotating accessory and cause
loss of control or kickback.
c) Do not attach a toothed saw blade. Such blades
create frequent kickback and loss of control.
d) Always feed the bit into the material in the same
direction as the cutting edge is exiting from the
material (which is the same direction as the
chips are thrown). Feeding the tool in the wrong di-
rection causes the cutting edge of the bit to climb out
of the work and pull the tool in the direction of this
feed.
e) When using rotary files, cut-off wheels, high-
speed cutters or tungsten carbide cutters, always
have the work securely clamped. These wheels
will grab if they become slightly canted in the groove,
and can kickback. When a cut-off wheel grabs, the
wheel itself usually breaks. When a rotary file, high-
speed cutter or tungsten carbide cutter grabs, it may
jump from the groove and you could lose control of
the tool.
Safety warnings specific for grinding and abrasive
cutting-off operations:
a) Use only wheel types that are recommended for
your power tool and only for recommended ap-
plications. For example: do not grind with the side
of a cut-off wheel. Abrasive cut-off wheels are in-
tended for peripheral grinding, side forces applied to
these wheels may cause them to shatter.
b) For threaded abrasive cones and plugs use only
undamaged wheel mandrels with an unrelieved
shoulder flange that are of correct size and
length. Proper mandrels will reduce the possibility
of breakage.
c) Do not "jam" a cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive
depth of cut. Overstressing the wheel increases the
loading and susceptibility to twisting or snagging of
the wheel in the cut and the possibility of kickback
or wheel breakage.
d) Do not position your hand in line with and behind
the rotating wheel. When the wheel, at the point of
operation, is moving away from your hand, the pos-
sible kickback may propel the spinning wheel and
the power tool directly at you.
e) When wheel is pinched, snagged or when inter-
rupting a cut for any reason, switch off the power
tool and hold the power tool motionless until the
wheel comes to a complete stop. Never attempt
to remove the cut-off wheel from the cut while
the wheel is in motion otherwise kickback may
occur. Investigate and take corrective action to elim-
inate the cause of wheel pinching or snagging.
f) Do not restart the cutting operation in the work-
piece. Let the wheel reach full speed and care-
fully re-enter the cut. The wheel may bind, walk up
or kickback if the power tool is restarted in the work-
piece.
g) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kick-
back. Large workpieces tend to sag under their own
weight. Supports must be placed under the work-
piece near the line of cut and near the edge of the
workpiece on both sides of the wheel.
h) Use extra caution when making a "pocket cut"
into existing walls or other blind areas. The pro-
truding wheel may cut gas or water pipes, electrical
wiring or objects that can cause kickback.
Safety warnings specific for wire brushing opera-
tions:
a) Be aware that wire bristles are thrown by the
brush even during ordinary operation. Do not
overstress the wires by applying excessive load
to the brush. The wire bristles can easily penetrate
light clothing and/or skin.
b) Allow brushes to run at operating speed for at
least one minute before using them. During this
time no one is to stand in front or in line with the
brush. Loose bristles or wires will be discharged dur-
ing the run-in time.
- 13 -