Cut-Off Machine Safety Warnings - Bosch GCO 240 Professional Manual Del Usuario

OBJ_BUCH-2660-003.book Page 7 Tuesday, July 19, 2016 9:50 AM
paired before use. Many accidents are caused by poorly
maintained power tools.
 Keep cutting tools sharp and clean. Properly maintained
cutting tools with sharp cutting edges are less likely to bind
and are easier to control.
 Use the power tool, accessories and tool bits etc. in ac-
cordance with these instructions, taking into account
the working conditions and the work to be performed.
Use of the power tool for operations different from those
intended could result in a hazardous situation.
 Keep handles and grasping surfaces dry, clean and free
from oil and grease. Slippery handles and grasping sur-
faces do not allow for safe handling and control of the tool
in unexpected situations.
Service
 Have your power tool serviced by a qualified repair per-
son using only identical replacement parts. This will en-
sure that the safety of the power tool is maintained.

Cut-off machine safety warnings

 Position yourself and bystanders away from the plane
of the rotating wheel. The guard helps to protect the op-
erator from broken wheel fragments and accidental con-
tact with wheel.
 Use only bonded reinforced cut-off wheels for your
power tool. Just because an accessory can be attached to
your power tool, it does not assure safe operation.
 The rated speed of the accessory must be at least equal
to the maximum speed marked on the power tool. Ac-
cessories running faster than their rated speed can break
and fly apart.
 Wheels must be used only for recommended applica-
tions. For example: do not grind with the side of a cut-
off wheel. Abrasive cut-off wheels are intended for pe-
ripheral grinding, side forces applied to these wheels may
cause them to shatter.
 Always use undamaged wheel flanges that are of cor-
rect diameter for your selected wheel. Proper wheel
flanges support the wheel thus reducing the possibility of
wheel breakage.
 The outside diameter and the thickness of your acces-
sory must be within the capacity rating of your power
tool. Incorrectly sized accessories cannot be adequately
guarded or controlled.
 The arbour size of wheels and flanges must properly fit
the spindle of the power tool. Wheels and flanges with
arbour holes that do not match the mounting hardware of
the power tool will run out of balance, vibrate excessively
and may cause loss of control.
 Do not use damaged wheels. Before each use, inspect
the wheels for chips and cracks. If the power tool or
wheel is dropped, inspect for damage or install an un-
damaged wheel. After inspecting and installing the
wheel, position yourself and bystanders away from the
plane of the rotating wheel and run the power tool at
maximum no load speed for one minute. Damaged
wheels will normally break apart during this test time.
Bosch Power Tools
 Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety
glasses. As appropriate, wear dust mask, hearing pro-
tectors, gloves and shop apron capable of stopping
small abrasive or workpiece fragments. The eye protec-
tion must be capable of stopping flying debris generated
by various operations. The dust mask or respirator must be
capable of filtrating particles generated by your operation.
Prolonged exposure to high intensity noise may cause
hearing loss.
 Keep bystanders a safe distance away from work area.
Anyone entering the work area must wear personal
protective equipment. Fragments of workpiece or of a
broken wheel may fly away and cause injury beyond imme-
diate area of operation.
 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 wheel
 Regularly clean the power tool's air vents. The motor's
fan can draw the dust inside the housing and excessive ac-
cumulation of powdered metal may cause electrical haz-
ards.
 Do not operate the power tool near flammable materi-
als. Do not operate the power tool while placed on a
combustible surface such as wood. Sparks could ignite
these materials.
 Do not use accessories that require liquid coolants. Us-
ing water or other liquid coolants may result in electrocu-
tion or shock.
Kickback and related warnings
 Kickback is a sudden reaction to a pinched or snagged ro-
tating wheel. Pinching or snagging causes rapid stalling of
the rotating wheel which in turn causes the uncontrolled
cutting unit to be forced upwards toward the operator.
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. Abrasive wheels
may also break under these conditions.
Kickback is the result of power tool misuse and/or incor-
rect operating procedures or conditions and can be avoid-
ed by taking proper precautions as given below.
 Maintain a firm grip on the power tool and position your
body and arm to allow you to resist kickback forces.
The operator can control upward kickback forces, if proper
precautions are taken.
 Do not position your body in line with the rotating
wheel. If kickback occurs, it will propel the cutting unit up-
wards toward the operator.
 Do not attach a saw chain, woodcarving blade, seg-
mented diamond wheel with a peripheral gap greater
than 10 mm or toothed saw blade. Such blades create
frequent kickback and loss of control.
 Do not "jam" the wheel or apply excessive pressure. Do
not attempt to make an excessive depth of cut. Over-
stressing the wheel increases the loading and susceptibili-
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