Safety Guidelines For Battery Chargers - ST CCS-S20Li Manual Del Usuario

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Appliance-specific

circular saws

Safety instructions for all saws

Sawing method

DANGER! Keep your hands clear of the sawing area and

the saw blade. Hold the auxiliary handle or motor housing with

your other hand. When both hands are being used to hold the

saw, neither can be injured by the saw blade.

b) Do not reach underneath the workpiece. The blade guard

cannot protect you from the saw blade below the workpiece.

c) Set the cutting depth to match the thickness of the workpiece.

Less than a full tooth height should be visible below the

workpiece.

d) Never hold the workpiece to be sawn in your hand or over your

leg. Fasten the workpiece onto a stable working surface. It is

important to fasten the workpiece securely to minimise the danger

of bodily contact, jamming of the saw blade or loss of control.

e) Hold the power tool only by the insulated handles when you are

carrying out work during which the accessory tool may come into

contact with concealed power cables or the tool's own power cord.

Contact with a live wire will also make exposed metal parts of the

power tool live and could give the operator an electric shock.

f) When making longitudinal cuts, always use a rip fence or a

straight edge guide. This will improve the accuracy of your cut and

reduce the likelihood of the saw blade jamming.

g) Always use saw blades of the correct size and with an

appropriate central fixing bore (e.g. star-shaped or round). Blades

that do not match the mounting hardware of the saw will run

eccentrically, causing loss of control.

h) Never use damaged or incorrect blade washers or bolts. The

blade washers and bolts were specially designed for your saw, for

optimum performance and safety of operation.

Further safety instructions for all saws

Kickback - causes and corresponding safety instructions

▯ A kickback is a sudden reaction caused as a result of the saw

blade catching, jamming or being falsely aligned, causing the saw

to jump up uncontrollably and out of the workpiece in the direction

of the operator;

▯ if the saw blade catches or jams in a narrowing saw cut, the

blade can no longer rotate and the power of the motor throws the

appliance back in the direction of the operator;

▯ if the saw blade twists in the saw cut or becomes misaligned,

the teeth at the rear edge of the saw blade can become caught in

the wood surface, causing the saw blade to jump out of the cut

and the saw to jump backwards in the direction of the operator.

Kickback is a result of saw misuse and/or incorrect operating

procedures or conditions. This can be avoided by taking proper

precautions as described below.

a) Hold the saw firmly in both hands and position your arms such

that they can absorb the force of a kickback. Always stand to the

side of the saw blade and never in line with it. If a kickback

occurs, the circular saw may jump backwards. However, by taking

appropriate precautions the operator can control the kickback

forces.

b) If the saw blade jams or you stop working, switch the saw off

and hold it steadily in the workpiece until the saw blade has

completely stopped turning. Never attempt to remove the saw

from the workpiece or pull it backwards while the saw blade is still

moving as this could lead to a kickback. Investigate and take

corrective actions to eliminate the cause of blade binding.

c) If you want to restart a saw that is still in the workpiece, centre

the saw blade in the cut and check to ensure that the teeth are not

caught anywhere in the workpiece. If the saw blade catches it can

jump out of the workpiece or cause a kickback when the saw is

restarted.

safety instructions

d) Support large panels to minimise the risk of blade

for

pinching and kickback. Large panels tend to bend under

their own weight. Panels/boards must be supported on

both side: i.e. both in the vicinity of the saw cut and also at

the edge.

e) Do not use blunt or damaged saw blades. Saw blades

with blunt or misaligned teeth may cause excessive friction

as the saw cut is too narrow, and this can cause a saw

blade jam and kickback.

f) Before sawing, ensure that the fastenings for the cut

depth and cut angle settings are tightened. If the settings

change while sawing, the saw blade might jam and cause

a kickback.

g) Be particularly careful when sawing in existing walls or

other obscured areas. The inserted saw blade could get

caught on hidden objects and cause a kickback.

Function of the lower blade guard

a) Check whether the lower blade guard closes properly

before each use. Do not operate the saw if lower blade

guard does not move freely and close instantly. Never

clamp or tie the lower blade guard into the open position.

If the saw is accidentally dropped, lower blade guard may

be bent. Raise the blade guard with the release lever and

make sure it moves freely and does not touch the blade or

any other part at all angles and cut depths.

b) Check the operation of the lower blade guard spring.

Have the saw serviced before using it if the lower blade

guard and spring are not working properly. Damaged parts,

sticky deposits or accumulations of chippings can cause

the lower blade guard to operate slowly.

c) The lower blade guard may be retracted manually only

for special cuts such as "plunge cuts" and "compound

cuts". Raise the lower blade guard with the release lever

and release it as soon as blade enters the material. For all

other sawing, the lower blade guard should operate

automatically.

d) Always ensure that the lower blade guard is covering the

blade before placing the saw down on the workbench or

floor. An unprotected, coasting saw blade will move the

saw in the opposite direction to the cutting direction and

saw anything in its path. Always, take into account that the

saw blade takes some time to stop spinning.