SUHNER ABRASIVE UWG 11-R, Technical Document

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ATTENTION: The temperature “130°C” is equivalent to the tempe -
rature “265°F”.
g) Follow all work instructions for charging and never charge
the battery or battery-powered tool at temperatures out-
side the temperature range stated in the operating instruc-
tions.
Charging the tool incorrectly, or charging it at tempera-
tures outside the approved temperature range, may destroy the
battery and increase the risk of fire.
Safety instructions for all operations
Safety Warnings Common for Grinding, Sanding, Wire Brus-
hing, Polishing or Abrasive Cutting-Off Operations:
a) This power tool is intended to function as a grinder, san-
der, wire brush, polisher or cut-off tool. Read all safety
warnings, instructions, illustrations and specifications
provided with this power tool.
Failure to follow all instructions
listed below may result in electric shock, fire and/or serious injury.
c) Do not use accessories which are not specifically desi -
gned and recommended by the tool manufacturer.
Just be-
cause the accessory can be attached to your power tool, it does
not assure safe operation.
d) The rated speed of the accessory must be at least equal to
the maximum speed marked on the power tool.
Accessories
running faster than their rated speed can break and fly apart.
e) The outside diameter and the thickness of your accesso-
ry must be within the capacity rating of your power tool.
Incorrectly sized accessories cannot be adequately guarded or
controlled.
f) Threaded mounting of accessories must match the grinder
spindle thread. For accessories mounted by flanges, the
arbour hole of the accessory must fit the locating diame -
ter of the flange.
Accessories that do not match the mounting
hardware of the power tool will run out of balance, vibrate ex-
cessively and may cause loss of control.
g) Do not use a damaged accessory. Before each use inspect
the accessory such as abrasive wheels for chips and
cracks, backing pad for cracks, tear or excess wear, wire
brush for loose or cracked wires. If power tool or accesso-
ry is dropped, inspect for damage or install an undamaged
accessory. After inspecting and installing an accessory,
position yourself and bystanders away from the plane of
the rotating accessory and run the power tool at maximum
no-load speed for one minute.
Damaged accessories will nor-
mally break apart during this test time.
h) Wear personal protective equipment. Depending on appli-
cation, use face shield, safety goggles or safety glasses.
As appropriate, wear dust mask, hearing protectors, gloves
and workshop apron capable of stopping small abrasive or
workpiece fragments.
The eye protection must be capable of
stopping flying debris generated by various operations. The dust
mask or respirator must be capable of filtrating particles genera-
ted by your operation. Prolonged exposure to high intensity noise
may cause hearing loss.
i) Keep bystanders a safe distance away from work area. An-
yone entering the work area must wear personal protective
equipment.
Fragments of workpiece or of a broken accessory
may fly away and cause injury beyond immediate area of operati-
on.
j) Hold power tool by insulated gripping surfaces only, when
performing an operation where the cutting accessory may
contact hidden wiring or its own cord.
Cutting accessory
contacting a „live“ wire may make exposed metal parts of the po-
wer tool „live“ and shock the operator.
k) Position the cord clear of the spinning accessory.
If you lose
control, the cord may be cut or snagged and your hand or arm
may be pulled into the spinning accessory.
l) Never lay the power tool down until the accessory has
come to a complete stop.
The spinning accessory may grab
the surface and pull the power tool out of your control.
m) Do not run the power tool while carrying it at your side.
Accidental contact with the spinning accessory could snag your
clothing, pulling the accessory into your body.
n) Regularly clean the power tool‘s air vents.
The motor‘s fan
will draw the dust inside the housing and excessive accumulation
of powdered metal may cause electrical hazards.
o) Do not operate the power tool near flammable materials.
Sparks could ignite these materials.
p) Do not use accessories that require liquid coolants.
Using
water or other liquid coolants may result in electrocution or shock.
NOTE The above warning does not apply for power tools spe-
cifically designed for use with a liquid system.
Further safety instructions for all operations
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating
wheel, backing pad, 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 accessory‘s rotation at the point of the binding.
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 pinching. Abrasive wheels may also break under the-
se conditions.
Kickback is the result of power tool misuse and/or incorrect opera-
ting procedures or conditions and can be avoided by taking proper
precautions as given below.
a) Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces. Al-
ways use auxiliary handle, if provided, for maximum con-
trol over kickback or torque reaction during start-up.
The
operator can control torque reactions or kickback forces, if proper
precautions are taken.
b) Never place your hand near the rotating accessory.
Acces-
sory may kickback over your hand.
c) Do not position your body in the area where power tool will
move if kickback occurs.
Kickback will propel the tool in direc-
tion opposite to the wheel‘s movement at the point of snagging.
d) Use special care when working corners, sharp edges etc.
Avoid bouncing and snagging the accessory.
Corners,
sharp edges or bouncing have a tendency to snag the rotating
accessory and cause loss of control or kickback.
e) Do not attach a saw chain woodcarving blade or toothed
saw blade.
Such blades create frequent kickback and loss of
control.
Additional safety instructions for grinding and cutting-off ope -
rations
Safety Warnings Specific for Grinding and Abrasive Cutting-
Off Operations:
a) Use only wheel types that are recommended for your po-
wer tool and the specific guard designed for the selected
wheel.
Wheels for which the power tool was not designed cannot
be adequately guarded and are unsafe.
b) The grinding surface of centre depressed wheels must be
mounted below the plane of the guard lip.
An improperly
mounted wheel that projects through the plane of the guard lip
cannot be adequately protected.
c) The guard must be securely attached to the power tool
and positioned for maximum safety, so the least amount of
wheel is exposed towards the operator.
The guard helps to
protect the operator from broken wheel fragments and accidental
contact with wheel and sparks that could ignite clothing.
d) Wheels must be used only for recommended applications.
For example: do not grind with the side of cut-off wheel.
Abrasive cut-off wheels are intended for peripheral grinding, side
forces applied to these wheels may cause them to shatter.
e) Always use undamaged wheel flanges that are of correct
size and shape for your selected wheel.
Proper wheel flanges
support the wheel thus reducing the possibility of wheel brea-
kage. Flanges for cut-off wheels may be different from grinding
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