Bosch GCD 12 JL Professional, Оригинальное руководство пользователя

Страница: 21 / 333

English | 21
operation. Prolonged exposure to high intensity noise
may cause hearing loss.
u
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 saw blade may fly away and cause injury beyond
immediate area of operation.
u
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 saw blade.
u
Regularly clean the power tool’s air vents. The motor’s
fan can draw the dust inside the housing and excessive
accumulation of powdered metal may cause electrical
hazards.
u
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.
u
Do not use accessories that require liquid coolants.
Using water or other liquid coolants may result in electro-
cution or shock.
u
Always use undamaged saw blade flanges that are of
correct diameter for your selected saw blade.
Proper
saw blade flanges support the saw blade thus reducing
the possibility of saw blade breakage.
u
The arbour size of saw blades and flanges must prop-
erly fit the spindle of the power tool.
Saw blades 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.
u
Do not use damaged saw blades. Before each use, in-
spect the saw blades for chips and cracks. If the
power tool or saw blade is dropped, inspect for dam-
age or install an undamaged saw blade. After inspect-
ing and installing the saw blade, position yourself and
bystanders away from the plane of the rotating saw
blade and run the power tool at maximum no load
speed for one minute.
Damaged saw blades will nor-
mally break apart during this test time.
Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotat-
ing saw blade. Pinching or snagging causes rapid stalling of
the rotating saw blade which in turn causes the uncontrolled
cutting unit to be forced upwards toward the operator.
For example, if a saw blade is snagged or pinched by the
workpiece, the edge of the saw blade that is entering into the
pinch point can dig into the surface of the material causing
the saw blade to climb out or kick out. Saw blades may also
break under these conditions.
Kickback is the result of power tool misuse and/or incorrect
operating procedures or conditions and can be avoided by
taking proper precautions as given below.
u
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.
u
Do not position your body in line with the rotating saw
blade.
If kickback occurs, it will propel the cutting unit
upwards toward the operator.
u
Do not attach a saw chain, woodcarving blade or seg-
mented diamond wheel with a peripheral gap greater
than 10 mm.
Such blades create frequent kickback and
loss of control.
u
Do not “jam” the saw blade or apply excessive pres-
sure. Do not attempt to make an excessive depth of
cut.
Overstressing the saw blade increases the loading
and susceptibility to twisting or binding of the saw blade
in the cut and the possibility of kickback or saw blade
breakage.
u
When the saw blade is binding or when interrupting a
cut for any reason, switch off the power tool and hold
the cutting unit motionless until the saw blade comes
to a complete stop. Never attempt to remove the saw
blade from the cut while the saw blade is in motion
otherwise kickback may occur.
Investigate and take
corrective action to eliminate the cause of saw blade
binding.
u
Do not restart the cutting operation in the workpiece.
Let the saw blade reach full speed and carefully re-
enter the cut.
The saw blade may bind, walk up or kick-
back if the power tool is restarted in the workpiece.
u
Support any oversized workpiece to minimize the risk
of saw blade pinching and kickback.
Large workpieces
tend to sag under their own weight. Supports must be
placed under the workpiece near the line of cut and near
the edge of the workpiece on both sides of the saw blade.
u
Use clamps to support the workpiece whenever pos-
sible. If supporting the workpiece by hand, you must
always keep your hand at least 100 mm from either
side of the saw blade. Do not use this saw to cut pieces
that are too small to be securely clamped or held by
hand.
If your hand is placed too close to the saw blade,
there is an increased risk of injury from blade contact.
u
The workpiece must be stationary and clamped or
held against both the fence and the table. Do not feed
the workpiece into the blade or cut “freehand” in any
way.
Unrestrained or moving workpieces could be thrown
at high speeds, causing injury.
u
Push the saw through the workpiece. Do not pull the
saw through the workpiece. To make a cut, raise the
saw head and pull it out over the workpiece without
cutting, start the motor, press the saw head down and
push the saw through the workpiece.
Cutting on the
pull stroke is likely to cause the saw blade to climb on top
of the workpiece and violently throw the blade assembly
towards the operator.
u
Never cross your hand over the intended line of cut-
ting either in front or behind the saw blade.
Supporting
the workpiece “cross handed” i.e. holding the workpiece
to the right of the saw blade with your left hand or vice
versa is very dangerous.
u
Do not reach behind the fence when the saw blade is
rotating. Never fail to maintain a safe distance of 100
Bosch Power Tools 1 609 92A 7N3 | (26.04.2022)