Bosch GKS 7 1/4 Professional Operating Instructions Manual page 16

Always wait until the machine has come to a com-
•
plete stop before placing it down.
jam and lead to loss of control over the power tool.
• Do not use a machine with a damaged mains cable.
Do not touch the damaged cable and pull the mains
plug when the cable is damaged while working.
aged cables increase the risk of an electric shock.
• If the cable is damaged or cut though while
working, do not touch the cable but immediately
pull the mains plug. Never use the machine with a
damaged cable.
• Wear safety glasses, hearing protectors and pro-
tective gloves. Wear a face mask.
• For long hair, wear hair protection. Work only with
close-fitting clothes.
• For the mounting and replacing of the circular
saw blade 17, wear protective gloves.
• When working, never place a hand or fingers in
front of the circular saw blade.
The improper use of accessories which are not in-
tended for this machine type increases the danger
of an accident and can lead to damage to the ma-
chine.
Connect machines that are used in the open via a re-
•
sidual current device (RCD).
• DANGER: Keep hands away from the cutting area
and the blade. Keep your second hand on the auxilia-
ry handle or the motor housing.
ing the saw, they cannot be cut by the saw blade.
Do not reach underneath the workpiece.
•
cannot protect you from the blade below the workpiece.
• Adjust the cutting depth to the thickness of the work-
piece.
Less than a full tooth of the blade teeth should be vis-
ible below the workpiece.
Never hold the piece being cut in your hands or
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across your leg. Secure the workpiece on a stable
support. It is important to support the work properly to mini-
mize body exposure, blade binding, or loss of control.
Hold the power tool only by the insulated gripping sur-
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faces when performing an operation where the cut-
ting tool may contact hidden wiring or its own power
cord. Contact with a "live" wire will also make exposed metal
parts of the power tool "live" and shock the operator.
When ripping always use a rip fence or straight edge
•
guide.
This improves the accuracy of cut and reduces the
chance of blade binding.
Always use saw blades with correct size and shape
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(diamond versus round) of arbour holes.
do not match the mounting hardware of the saw will run
eccentrically,causing loss of control.
Never use damaged or incorrect blade washers
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or bolts. The blade washers and bolts were specially
designed for your saw, for optimum performance and
safety of operation.
Causes and operator prevention of kickback:
•
– Kickback is a sudden reaction to a pinched, bound or mis-
16
The tool insert can
Dam-
If both hands are hold-
The blade guard
Blades that
aligned saw blade, causing an uncontrolled saw to lift up
and out of the workpiece toward the operator.
– When the blade is pinched or bound tightly by the kerf
closing down, the blade stalls and the motor reaction drives
the unit rapidly back toward the operator.
– If the blade becomes twisted or misaligned in the cut, the
teeth at the back edge of the blade can dig into the top sur-
face of the wood causing the blade to climb out of the kerf
and jump back toward the operator. Kickback is the result of
saw misuse and/or incorrect operating procedures or condi-
tions and can be avoided by taking proper precautions as
given below.
D
The figure shows the correct and incorrect form of if lead-
ing the tool.
Maintain a firm grip with both hands on the saw and
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position your arms to resist kickback forces. Always
position yourself to the side of the saw blade, so that
your body is never in line with the saw blade.
back can cause the saw to jump backwards, but kickback
forces can be controlled by the operator if proper precau-
tions are taken.
In case the saw blade jams or if the sawing is dis-
•
continued, switch the saw off and hold it motionless
in the material until the blade comes to a complete
stop. Never attempt to remove the saw from the work
or pull the saw backward while the blade is in motion
or kickback may occur.
action to eliminate the cause of the blade binding.
When restarting a saw in the workpiece, centre the
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saw blade in the kerf and check that the saw teeth are
not engaged into the material.
ing, it may travel up from the workpiece or kickback as the
saw is restarted.
Support large panels to reduce the risk of blade
•
pinching and kickback. Large panels tend to sag un-
der their own weight.
panel on both sides, near the line of cut and near the edge of
the panel.
Do not use dull or damaged saw blades.
•
or improperly set blades produce narrow kerf causing ex-
cessive friction, blade binding and kickback.
Before sawing, tighten the blade depth andcutting
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angle adjustments.
If the adjustments change during cut-
ting, the saw blade can jam and kickback can occur.
Use extra caution when making "plunge cuts" into
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existing walls or other blind areas.
blade, when running into hidden objects, can be jammed
and cause kickback.
Check the lower guard for proper closing before each
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use. Do not operate the saw if the lower guard does
not move freely and close instantly. Never clamp or
tie the lower guard into the open position.
accidentally dropped, the lower guard may be bent. Raise
the lower guard with the retracting handle and make sure it
moves freely and does not touch the blade or any other part,
in all angles and depths of cut.
Check the operation of the lower guard spring. If the
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guard and the spring are not operating properly, they
must be serviced before use.
ate sluggishly due to damaged parts, gummy depositsor a
build-up of debris.
Investigate and take corrective
If the saw blade is bind-
Supports must be placed under the
Unsharpened
The protruding saw
The lower guard may oper-
Kick-
If saw is