Stihl TSA 230 Instruction Manual page 80

English
possible control of kickback forces
or reactive torques during start-up.
The operator can control the
kickback and reactive forces by
taken suitable precautions.
b) Never place your hand near the
rotating tool bits. The tool bit can
move across your hand in the event
of a kickback.
c) Avoid the area in front of and behind
the rotating abrasive wheel. The
kickback drives the electrical power
tool in a direction that is opposite to
the movement of the abrasive wheel
at the blockage site.
d) Work with great care around
corners, sharp edges, etc. Prevent
tool bits of the workpiece from
recoiling and jamming. The rotating
tool bit tends to jam when it hits
corners, sharp edges or if it
ricochets. This results in the loss of
control or kickback.
e) Do not use a chain or toothed saw
blade or a segmented diamond
wheel with more than a 10 mm wide
slit. Such tool bits often cause
kickback or the loss of control of the
electrical power tool.
f) Avoid the blocking of the abrasive
wheel or a surface pressure that is
too high. Do not make cuts that are
too deep. Overloading the abrasive
wheel increases its stress level and
the likelihood of skewing or
blocking, and thereby the possibility
of a kickback or breakage of the
abrasive element.
78
g) If the abrasive wheel jams or if you
interrupt your work, switch off the
machine and hold it still until the
wheel stops. Never try to remove an
abrasive wheel that is still rotating
out of the cut as this may lead to a
kickback. Determine and rectify the
cause of the jam.
h) Do not switch the electrical power
tool back if it is still in the workpiece.
Allow the abrasive wheel to reach
its full speed before continuing
carefully with the cut. Otherwise the
wheel may catch, jump out of the
workpiece or cause a kickback.
i) Support plates or large workpieces
to reduce the risk of a kickback due
to a jammed abrasive wheel. Large
workpieces can bend under their
own weight. The workpiece must be
supported on both sides of the
wheel, both near the cut and at the
edge.
j) Be especially careful with "pocket
cuts" in existing walls or other blind
areas. If the penetrating abrasive
wheel cuts into gas or water pipes,
electric cables or other objects, this
can cause a kickback.
TSA 230