Bosch GGS 5000 Professional Notice Originale page 7

OBJ_DOKU-65650-001.fm Page 7 Thursday, April 5, 2018 8:28 AM
Kickback and related warnings
 Kickback is a sudden reaction to a pinched or snagged ro-
tating wheel, sanding band, brush or any other accessory.
Pinching or snagging causes rapid stalling of the rotating
accessory which in turn causes the uncontrolled power
tool to be forced in the direction opposite of the accesso-
ry's rotation.
For example, if an abrasive wheel is snagged or pinched by
the workpiece, the edge of the wheel that is entering into
the pinch point can dig into the surface of the material
causing the wheel to climb out or kick out. The wheel may
either jump toward or away from the operator, depending
on direction of the wheel's movement at the point of pinch-
ing. Abrasive wheels may also break under these condi-
tions.
Kickback is the result of power tool misuse and/or incor-
rect operating procedures or conditions and can be avoid-
ed by taking proper precautions as given below.
 Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces.
The operator can control kickback forces, if proper precau-
tions are taken.
 Use special care when working corners, sharp edges
etc. Avoid bouncing and snagging the accessory. Cor-
ners, sharp edges or bouncing have a tendency to snag the
rotating accessory and cause loss of control or kickback.
 Do not attach a toothed saw blade. Such blades create
frequent kickback and loss of control.
 Always feed the bit into the material in the same direc-
tion 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 direction causes the cutting
edge of the bit to climb out of the work and pull the tool in
the direction of this feed.
 When using rotary files or tungsten carbide cutters, al-
ways have the work securely clamped. These wheels will
grab if they become slightly canted in the groove, and can
kickback. When the rotary file or tungsten carbide cutter
grab, it may jump from the groove and you could lose con-
trol of the tool.
Safety warnings specific for grinding and abrasive cut-
ting-off operations
 Use only wheel types that are recommended for your
power tool and only for recommended applications.
For example: do not grind with the side of a cut-off
wheel. Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may cause
them to shatter.
 For threaded abrasive cones and plugs use only undam-
aged wheel mandrels with an unrelieved shoulder
flange that are of correct size and length. Proper man-
drels will reduce the possibility of breakage.
 Do not "jam" a cut-off wheel or apply excessive pres-
sure. Do not attempt to make an excessive depth of cut.
Overstressing the wheel increases the loading and suscep-
tibility to twisting or snagging of the wheel in the cut and
the possibility of kickback or wheel breakage.
Bosch Power Tools
 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 possible kickback may
propel the spinning wheel and the power tool directly at
you.
 When wheel is pinched, snagged or when interrupting
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 cutoff
wheel from the cut while the wheel is in motion other-
wise kickback may occur. Investigate and take corrective
action to eliminate the cause of wheel pinching or snag-
ging.
 Do not restart the cutting operation in the workpiece.
Let the wheel reach full speed and carefully re-enter
the cut. The wheel may bind, walk up or kickback if the
power tool is restarted in the workpiece.
 Support panels or any oversized workpiece to minimize
the risk of wheel pinching and kickback. Large work-
pieces tend to sag under their own weight. Supports must
be placed under the workpiece near the line of cut and near
the edge of the workpiece on both sides of the wheel.
 Use extra caution when making a "pocket cut" into ex-
isting walls or other blind areas. The protruding wheel
may cut gas or water pipes, electrical wiring or objects that
can cause kickback.
Additional safety warnings
 Do not touch abrasive wheels until they have cooled
down. The discs can become very hot while working.
 Products sold in GB only: Your product is fitted with a
BS 1363/A approved electric plug with internal fuse
(ASTA approved to BS 1362).
If the plug is not suitable for your socket outlets, it should
be cut off and an appropriate plug fitted in its place by an
authorised customer service agent. The replacement plug
should have the same fuse rating as the original plug.
The severed plug must be disposed of to avoid a possible
shock hazard and should never be inserted into a mains
socket elsewhere.
Products sold in AUS and NZ only: Use a residual current
device (RCD) with a rated residual current of 30 mA or
less.
Wear safety goggles.
English | 7
1 609 92A 45B | (5.4.18)