Bosch 1364 Operating/Safety Instructions Manual page 4

BM 1609929C59 06-10 :BM 1609929C59 06/10 6/24/10 8:10 AM Page 4
Do not grind on the side of Type 1
abrasive cut off wheels. Side forces applied
to these wheels may cause them to shatter.
Do not use this tool with "Woodcarving"
blade or standard wood cutting toothed
blades. These blades are not intended for
this machine and can create loss of control
during use.
Abrasive Cut Off Wheels must have a
maximum safe operating speed greater
than the "no load RPM" marked on the
tool's nameplate. Wheels running over the
rated speed can fly apart and cause injury.
Before each use inspect the cut off wheel
for chips and cracks. Do not use a wheel
that may be damaged. Install a new wheel
if tool was dropped. When installing a
new wheel carefully handle individual cut
off wheels to avoid chipping or cracking.
Run the tool at no load for one minute,
holding the tool in the direction away
from people. Wheels with flaws will
normally break apart during this time.
Fragments from a wheel that bursts during
operation will fly away at great velocity
possibly striking you or bystanders.
Do not use a cut off wheel that is larger
than the maximum recommended size for
your tool, or worn down damaged wheels
from larger abrasive cut off machines.
Wheels intended for larger tools are not
suitable for the higher speed of a smaller
tool, these wheels may easily burst and the
fragments strike you or bystanders.
Position the cord clear of the spinning
wheel. Do not wrap the cord around your
arm or wrist. If you lose control and have
the cord wrapped around your arm or wrist, it
may entrap you and cause injury.
Keep your body positioned to either side
of the wheel, but not in line with the
wheel. It is important to support the tool
properly and to position your body such as to
minimize body exposure from the possible
wheel binding and the recoil of the tool.
Keep hands away from cutting area and
wheel. Keep your second hand on
auxiliary handle. Hold the machine firmly
to prevent loss of control. NEVER place
your hand behind the wheel since the
machine may recoil over your hand. Do
not attempt to remove cut material when
wheel is moving. If both hands are holding
the machine, they cannot be cut by the wheel
Do not "jam" the abrasive wheel into the
work, apply excessive pressure or
attempt to use large depths of cut while
using this machine. Let the rotating wheel
do the work, Abrasive Cut Off Machines are
intended to "cut" the material in a series of
shallow depth of cuts. See the instructions for
depth of cut later in this manual.
Avoid bouncing and snagging the wheel,
especially when working corners, sharp
edges etc. This can cause loss of control
and machine's recoil.
Do not run the machine while carrying it
at your side. Accidental contact with the
spinning wheel could result in serious
personal injury.
Never lay the tool down until the motor
has come to a complete standstill. The
spinning wheel can grab the surface and pull
the tool out of your control.
Do not use the abrasive cut off machine
near flammable materials. Sparks from the
wheel could ignite these materials.
Never cut or attempt to cut magnesuum
with this tool. The dust generated when
cutting magnesuum is highly flammable and
may be explosive under certain conditions.
Regularly clean the tool's air vents by
compressed air. Excessive accumulation of
powdered metal inside the motor housing
may cause electrical failures.
Causes and Operator Prevention of Recoil:
Recoil is a sudden reaction to a pinched,
bound or misaligned rotating wheel. The
wheel may stall and cause an uncontrolled
machine to back out of the kerf toward the
operator when the machine is in the "fire
forward" position, if the machine is set in the
"reverse fire" position the machine may tend
to walk away from the operator.
If an abrasive wheel or diamond wheel
becomes twisted or misaligned in the cut, the
side of the wheel that is entering into the
material can dig into the top surface of the
material causing the wheel to climb out or
recoil out of the kerf either toward or away
from the operator, depending on the fire
forward or reverse fire orientation.
Abrasive wheels may also shatter under
these conditions causing pieces or fragments
to strike or impale the operator and
bystanders. Recoil or shattered wheels are
the result of tool misuse and/or incorrect
operating procedures or conditions and can
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