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4.2 Kickback and Related Warnings
Kickback is a sudden
reaction to a pinched or
snagged rotating wheel, backing pad,
brush or any
other tool. Pinching or snagging
causes rapid stalling of the rotating tool
which in turn causes the uncontrolled
power tool to be forced in the direction
opposite of the tool’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 these conditions.
Kickback is the result of power tool misuse and/or in-
correct operating procedures or conditions and can be
avoided by taking proper precautions as given below.
a)
Maintain a firm grip on the power tool and positi-
on your body and arm to allow you to resist kickback
forces. Always use auxiliary handle, if provided, for
maximum control over kickback or torque reaction du-
ring start-up.
The operator can control torque reactions
or kickback forces, if proper precautions are taken.
b)
Never place your hand near the rotating tool.
Tool may kickback over your hand.
c)
Do not position your body in the area where the
power tool will move if kickback occurs.
Kickback will
propel the tool in direction opposite to the wheel’s mo-
vement at the point of snagging.
d)
Use special care when working corners, sharp edges
etc. Avoid bouncing and snagging the tool.
Corners, sharp edges or bouncing have a tendency to
snag the rotating tool and cause loss of control or kick-
back.
e)
Do not attach a saw chain woodcarving blade or
toothed saw blade.
Such blades create frequent kickback
and loss of control.
4.3 Safety Warnings Specific for Sanding Operations:
a)
Do not use excessively oversized sanding disc pa-
per. Follow manufacturers recommendations when
selecting sanding paper.
Larger sanding paper ex-
tending beyond the sanding pad presents a laceration
hazard and may cause snagging, tearing of the disc or
kickback.
4.4 Safety Warnings Specific for Polishing:
Loose parts on the polishing guard, especially
the fastening cords, are not permitted. Tuck
away or shorten the fastening cords.
Loose, spinning fastening cords may make contact with
your fingers or become caught in the workpiece.
Use elastic cushioning layers if they have been
supplied with the abrasive and if required.
Observe the specifications of the tool or accessory
manufacturer!
Accessories must be stored and handled with care in
accordance with the manufacturer‘s instructions.
Ensure that accessories are installed in accordance
with the manufacturer‘s instructions.
The tool continues running after the machine has been
switched off.
When sanding and working with the lambskin polishing
disc with cord drive always work with the hand protection
guard installed.
Do not use separate reducing bushings or adapters
to adapt tools with a large hole.
The tool must lay flat and be secured against slipping,
e.g. using clamps. Large workpieces must be sufficiently
supported.
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 enough to accommodate the full length of the sp
indle. The thread in the accessory must match the thread
on the spindle.
During machining, of metals in particular, conductive
dust can form deposits inside the machine. This can lead
to the transfer of electrical energy onto the machine
housing. This can mean a temporary danger of electric
shocks. This is why it is necessary when the machine is
running to blow compressed air through the rear ventilati-
on slots of the machine regularly, frequently and thoroug-
hly. Here, the machine must be held firmly.
We recommend using a stationary extractor system
and connecting a residual current circuit-breaker (FI)
upstream. When the machine is shut down via the
FI circuit-breaker, it must be checked and cleaned. See
chapter 8.2 Cleaning for more information on cleaning
the motor.
When working in dusty conditions, ensure that ventilation
openings are not blocked. If it becomes necessary to re-
move dust, first disconnect the power tool from the mains
supply (use non-metallic objects) and avoid damaging
internal components.
Damaged, eccentric or vibrating tools must not be used.
Pull the plug out of the socket before making any adjust-
ments, converting or servicing the machine.
A damaged or cracked additional handle must be repla-
ced. Never operate a machine with a defective additional
handle.
A damaged or cracked hand guard must be replaced.
Never operate a machine with a defective hand guard.
EN