18
TS 55 R
– when the blade is pinched or jammed 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 surface 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 conditions and
can be avoided by taking proper precautions as
given below.
a. Maintain a firm grip with both hands on the
saw and position your arms to resist kickback
forces. Position your body to either side of the
blade, but not in line with the blade. Kickback
could cause the saw to jump backwards, but
kickback forces can be controlled by the opera-
tor, if proper precautions are taken.
b. When blade is binding, or when interrupting
a cut for any reason, release the trigger and
hold the saw 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. Investigate and
take corrective actions to eliminate the cause
of blade binding.
c. When restarting a saw in the workpiece, centre
the saw blade in the kerf so that the saw teeth
are not engaged into the material. If a saw
blade binds, it may walk up or kickback from
the workpiece as the saw is restarted.
d. Support large panels to minimise the risk of
blade pinching and kickback. Large panels tend
to sag under their own weight. Supports must
be placed under the panel on both sides, near
the line of cut and near the edge of the panel.
e. Do not use dull or damaged blades. Unsharp-
ened or improperly set blades produce narrow
kerf causing excessive friction, blade binding
and kickback.
f. Blade depth and bevel adjusting locking levers
must be tight and secure before making the
cut. If blade adjustment shifts while cutting, it
may cause binding and kickback.
g. Use extra caution when sawing into existing
walls or other blind areas. The protruding
blade may cut objects that can cause kickback.
Guard function
a. Check guard for proper closing before each
use. Do not operate the saw if guard does not
move freely and enclose the blade instantly.
Never clamp or tie the guard so that the blade
is exposed. If saw is accidentally dropped, guard
may be bent. Check to make sure that guard
moves freely and does not touch the blade or
any other part, in all angles and depths of cut.
b. Check the operation and condition of the guard
return spring. If the guard and the spring are
not operating properly, they must be serviced
before use. Guard may operate sluggishly due
to damaged parts, gummy deposits, or a build-
up of debris.
c. Assure that the base plate of the saw will not
shift while performing the “plunge cut” when
the blade bevel setting is not at 90°. Blade
shifting sideways will cause binding and likely
kickback.
d. Always observe that the guard is covering the
blade before placing saw down on bench or
floor. An unprotected, coasting blade will cause
the saw to walk backwards, cutting whatever is
in its path. Be aware of the time it takes for the
blade to stop after switch is released.
Function of the guide wedge [5-4]
a. Use the correct saw blade for the guide wedge.
To ensure that the guide wedge functions prop-
erly, make sure the blade core of the saw blade
is thinner than the guide wedge and that the
tooth width is greater than the thickness of the
guide wedge.
b. Do not operate the saw if the guide wedge is
bent. Even the slightest problem can cause the
protective cover to close more slowly.
2.3 Emission levels
Levels determined in accordance with EN 60745
are typically:
Sound pressure level L
PA
= 89 dB(A)
Noise level L
WA
= 100 dB(A)
Measuring uncertainty allowance K = 3 dB
CAUTION
Operating noise
Damage to hearing
XUse ear protection.
Vibration emission value a
h
(vector sum for
three directions) and uncertainty K measured in
accordance with EN 60745:
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