SUHNER ABRASIVE UWG 11-R, Technical Document

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wheel flanges.
f) Do not use worn down wheels from larger power tools.
Wheel intended for larger power tool is not suitable for the higher
speed of a smaller tool and may burst.
Additional safety instructions for cutting-off operations
Additional Safety Warnings Specific for Abrasive Cutting-Off
Operations:
a) Do not „jam“ the 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 susceptibility
to twisting or binding of the wheel in the cut and the possibility of
kickback or wheel breakage.
b) Do not position your body in line with and behind the rota-
ting wheel.
When the wheel, at the point of operation, is moving
away from your body, the possible kickback may propel the spin-
ning wheel and the power tool directly at you.
c) When wheel is binding 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. Ne-
ver attempt to remove the cut-off wheel from the cut while
the wheel is in motion otherwise kickback may occur.
Inve-
stigate and take corrective action to eliminate the cause of wheel
binding.
d) Do not restart the cutting operation in the workpiece. Let
the wheel reach full speed and carefully reenter the cut.
The wheel may bind, walk up or kickback if the power tool is re-
started in the workpiece.
e) Support panels or any oversized workpiece to minimize
the risk of wheel pinching and kickback.
Large workpieces
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.
f) Use extra caution when making a „pocket cut“ into exi-
sting walls or other blind areas.
The protruding wheel may
cut gas or water pipes, electrical wiring or objects that can cause
kickback.
Additional safety instructions for polishing operations
Safety Warnings Specific for Polishing Operations:
a) Do not allow any loose portion of the polishing bonnet or
its attachment strings to spin freely. Tuck away or trim any
loose attachment strings.
Loose and spinning attachment st-
rings can entangle your fingers or snag on the workpiece.
Additional safety instructions for wire brushing operations
Safety Warnings Specific for Wire Brushing Operations:
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) If the use of a guard is recommended for wire brushing, do
not allow any interference of the wire wheel or brush with
the guard.
Wire wheel or brush may expand in diameter due to
work load and centrifugal forces.
Additional Safety Instructions
Use elastic cushioning layers if they have been supplied with
the grinding media and if required.
Observe the specifications of the tool or accessory manufac -
turer! Protect the discs from grease or impacts!
Grinding discs must be stored and handled with care in accor-
dance with the manufacturer‘s instructions.
Never use cutting discs for roughing work! Do not apply pres-
sure to the side of the cutting discs.
The workpiece must lay flat and be secured against slipping,
e.g. using clamps. Large workpieces must be sufficiently sup -
ported.
If accessories with threaded inserts are used, the end of the
spindle may not touch the base of the hole on the grinding
tool. Make sure that the thread in the accessory is long en-
ough to accommodate the full length of the spindle. The thread
in the accessory must match the thread on the spindle. See
Technical Specifications for more information on the spindle
length and thread.
Use of a fixed extractor system is recommended. Always in -
stall an RCD with a max. trip current of 30 mA upstream. If the
angle grinder is shut down via the RCD, it must be checked
and cleaned.
Damaged, eccentric or vibrating tools must not be used.
Avoid damage to gas or water pipes, electrical cables and
load-bearing walls (static).
Pull the plug out of the socket before making any adjustments,
converting or servicing the machine.
Automatic safety clutch. When the safety clutch responds,
switch off the machine immediately!
A damaged or cracked additional handle must be replaced.
Never operate a machine with a defective additional handle.
A damaged or cracked safety guard must be replaced. Never
operate a machine with a defective safety guard.
Secure small workpieces. For example, clamp in a vice.
Reduce dust exposure
WARNING Particles generated when working with this
machine may contain substances that can cause cancer, all-
ergic reactions, respiratory diseases, birth defects or other
propagation defects. Some of these substances include: Lead
(in paint containing lead), mineral dust (from bricks, concrete
etc.), additives used for wood treatment (chromate, wood pre-
servatives), some wood types (such as oak or beech dust),
metals, asbestos.
The risk depends on for how long the user or nearby persons
are exposed to the substance.
This dust must not be allowed to enter your body. Do the fol-
lowing to reduce exposure to these substances: Ensure good
ventilation of the workplace and wear appropriate protective
equipment, such as respirators able to filter microscopically
small particles.
Observe the relevant guidelines for your material, staff, appli -
cation and place of application (e.g. occupational health and
safety regulations, disposal).
Collect the generated particles at the source, avoid deposits in
the surrounding area.
Use suitable accessories for special work, thus less particles
enter the environment in an uncontrolled manner.
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