Bosch 0 607 352 113 Originalbetriebsanleitung Seite 16

OBJ_BUCH-2005-002.book Page 16 Monday, January 20, 2014 5:27 PM
16 | English
 Use the pneumatic tool, accessories, application tools,
etc. according to these instructions. Take into consid-
eration the working conditions and the activities to be
carried out. This reduces the development of dust, vibra-
tions and noise to the greatest extent.
 The pneumatic tool should be set up, adjusted or used
exclusively by qualified and trained operators.
 The pneumatic tool may not be modified in any way.
Modifications can reduce the effectivity of the safety
measures and increase the risks for the operator.
Service
 Have your pneumatic tool repaired only through a qual-
ified repair person and only using original replacement
parts. This will ensure that the safety of the pneumatic tool
is maintained.
Safety Warnings for Pneumatic Angle Grinders
 Check if the type plate can be read. If required, provide
for replacement from the manufacturer.
 In case of breakage of the workpiece or an accessory,
or even of the pneumatic tool itself, parts can be
thrown about at high speed.
 During operation, repairs or maintenance, and when
replacing accessories on the pneumatic tool, always
wear shock-resistant eye protection. The degree of the
required protection should be separately evaluated for
each individual application.
 Ensure that the accessory is compatible with the pneu-
matic tool, fits on the spindle and is securely fitted. The
thread type and size must match the pneumatic tool.
Accessories which are not accurately fitted on the pneu-
matic tool will run out of balance, vibrate excessively and
may cause loss of control.
 After each service, check the speed with a speed-meas-
uring device and check the pneumatic tool for in-
creased vibrations.
 The permitted speed of the application tool must be at
least as high as the maximum speed specified on the
pneumatic tool. Accessories rotating faster than their
permitted speed can break and fly around.
 The guard must be securely attached to the pneumatic
tool and positioned for maximum safety, so the least
amount of wheel is exposed towards the operator. Reg-
ularly check the protection guard. The guard helps to
protect the operator from broken wheel fragments, acci-
dental contact with the wheel and sparks that could ignite
clothing.
 Regularly measure the no-load speed of the grinder
spindle. If the measured value of the specified no-load
speed exceeds n (see "Technical Data"), you should
0
have the pneumatic tool checked at a Bosch after-sales
centre. If the no-load speed is too high, the application
tool can break; if the speed is too low, the performance de-
creases.
 Always use undamaged wheel flanges that are of cor-
rect size and shape for your selected wheel. Proper
wheel flanges support the wheel thus reducing the possi-
3 609 929 C70 | (20.1.14)
bility of wheel breakage. Flanges for cut-off wheels may be
different from grinding wheel flanges.
 By working with certain materials, dusts and vapours
can form, which can create an explosive atmosphere.
By working with pneumatic tools, sparks can be produced,
which can ignite the dust or the vapours.
 Never place your hand near rotating application tools.
You could injure yourself.
 Caution! Application tools can become hot during pro-
longed operation of the pneumatic tool. Wear protective
gloves.
 The operators and the maintenance personnel must be
physically capable to handle the size, weight and pow-
er of the pneumatic tool.
 Be prepared for unexpected movements of the pneu-
matic tool that can develop owing to reaction forces or
breakage of the application tool. Maintain a firm grip
on the pneumatic tool and position your body and arms
to allow you to resist such movements. These precau-
tions can prevent injuries.
 When working with this pneumatic tool, assume a com-
fortable stance, hold the tool securely and avoid unfa-
vourable positions or such positions, where it is diffi-
cult to keep your balance. For prolonged work, the
operator should change the stance or posture, which
can help avoid discomfort and fatigue.
 In case of an interruption of the air supply or reduced
operating pressure, switch the pneumatic tool off.
Check the operating pressure and start again when the op-
erating pressure is optimal.
 Use only the lubricants recommended by Bosch.
 Wear a hard hat when carrying out work overhead. This
prevents injuries.
 Never lay the pneumatic tool down until the application
tool has come to a complete stop. The spinning applica-
tion tool may come into contact with the surface and pull
the pneumatic tool out of your control.
 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.
 When the wheel is binding or when interrupting a cut
for any reason, switch off the pneumatic tool and hold
it 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 eliminate
the cause of wheel binding.
 Wheels must be used only for recommended applica-
tions. For example: do not grind with the side of the
cut-off wheel. Abrasive cut-off wheels are intended for
peripheral grinding; side forces applied to these wheels
may cause them to shatter.
 Keep bystanders a safe distance away from work area.
Anyone entering the work area must wear personal
Bosch Power Tools