Bosch GCM Professional 80SJ Originalbetriebsanleitung Seite 21

OBJ_BUCH-2154-004.book Page 21 Wednesday, June 14, 2017 5:06 PM
Safety Warnings for Mitre Saws
 Mitre saws are intended to cut wood or wood-like prod-
ucts, they cannot be used with abrasive cut-off wheels
for cutting ferrous material such as bars, rods, studs,
etc. Abrasive dust causes moving parts such as the lower
guard to jam. Sparks from abrasive cutting will burn the
lower guard, the kerf insert and other plastic parts.
 Use clamps to support the workpiece whenever possi-
ble. If supporting the workpiece by hand, you must al-
ways keep your hand at least 100 mm from either side
of the saw blade. Do not use this saw to cut pieces that
are too small to be securely clamped or held by hand. If
your hand is placed too close to the saw blade, there is an
increased risk of injury from blade contact.
 The workpiece must be stationary and clamped or held
against both the fence and the table. Do not feed the
workpiece into the blade or cut "freehand" in any way.
Unrestrained or moving workpieces could be thrown at
high speeds, causing injury.
 Push the saw through the workpiece. Do not pull the
saw through the workpiece. To make a cut, raise the
saw head and pull it out over the workpiece without
cutting, start the motor, press the saw head down and
push the saw through the workpiece. Cutting on the pull
stroke is likely to cause the saw blade to climb on top of the
workpiece and violently throw the blade assembly towards
the operator.
 Never cross your hand over the intended line of cutting
either in front or behind the saw blade. Supporting the
workpiece "cross handed" i.e. holding the workpiece to
the right of the saw blade with your left hand or vice versa
is very dangerous.
 Do not reach behind the fence with either hand closer
than 100 mm from either side of the saw blade, to re-
move wood scraps, or for any other reason while the
blade is spinning. The proximity of the spinning saw blade
to your hand may not be obvious and you may be seriously
injured.
 Inspect your workpiece before cutting. If the work-
piece is bowed or warped, clamp it with the outside
bowed face toward the fence. Always make certain that
there is no gap between the workpiece, fence and table
along the line of the cut. Bent or warped workpieces can
twist or shift and may cause binding on the spinning saw
blade while cutting. There should be no nails or foreign ob-
jects in the workpiece.
 Do not use the saw until the table is clear of all tools,
wood scraps, etc., except for the workpiece. Small de-
bris or loose pieces of wood or other objects that contact
the revolving blade can be thrown with high speed.
 Cut only one workpiece at a time. Stacked multiple work-
pieces cannot be adequately clamped or braced and may
bind on the blade or shift during cutting.
 Ensure the mitre saw is mounted or placed on a level,
firm work surface before use. A level and firm work sur-
face reduces the risk of the mitre saw becoming unstable.
Bosch Power Tools
 Plan your work. Every time you change the bevel or mi-
tre angle setting, make sure the adjustable fence is set
correctly to support the workpiece and will not inter-
fere with the blade or the guarding system. Without
turning the tool "ON" and with no workpiece on the table,
move the saw blade through a complete simulated cut to
assure there will be no interference or danger of cutting the
fence.
 Provide adequate support such as table extensions,
saw horses, etc. for a workpiece that is wider or longer
than the table top. Workpieces longer or wider than the
mitre saw table can tip if not securely supported. If the cut-
off piece or workpiece tips, it can lift the lower guard or be
thrown by the spinning blade.
 Do not use another person as a substitute for a table ex-
tension or as additional support. Unstable support for
the workpiece can cause the blade to bind or the work-
piece to shift during the cutting operation pulling you and
the helper into the spinning blade.
 The cut-off piece must not be jammed or pressed by
any means against the spinning saw blade. If confined,
i.e. using length stops, the cut-off piece could get wedged
against the blade and thrown violently.
 Always use a clamp or a fixture designed to properly
support round material such as rods or tubing. Rods
have a tendency to roll while being cut, causing the blade
to "bite" and pull the work with your hand into the blade.
 Let the blade reach full speed before contacting the
workpiece. This will reduce the risk of the workpiece be-
ing thrown.
 If the workpiece or blade becomes jammed, turn the
mitre saw off. Wait for all moving parts to stop and dis-
connect the plug from the power source and/or remove
the battery pack. Then work to free the jammed mate-
rial. Continued sawing with a jammed workpiece could
cause loss of control or damage to the mitre saw.
 After finishing the cut, release the switch, hold the saw
head down and wait for the blade to stop before remov-
ing the cut-off piece. Reaching with your hand near the
coasting blade is dangerous.
 Keep your workplace clean. Blends of materials are par-
ticularly dangerous. Dust from light alloys can burn or ex-
plode.
 Do not use dull, cracked, bent or damaged saw blades.
Unsharpened or improperly set saw blades produce nar-
row kerf causing excessive friction, blade binding and kick-
back.
 Do not use high speed steel (HSS) saw blades. Such saw
blades can easily break.
 Always use blades with correct size and shape (dia-
mond versus round) of arbour holes. Blades that do not
match the mounting hardware of the saw will run eccentri-
cally, causing loss of control.
 Never remove cutting remainders, wood chips, etc.
from the sawing area while the machine is running. Al-
ways guide the tool arm back to the neutral position first
and then switch the machine off.
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