Hilti SCM 22-A Manual page 13

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.
▶ 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
operator, if proper precautions are taken.
▶ 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.
▶ 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.
▶ 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.
▶ Do not use dull or damaged blades. Unsharpened or improperly set
blades produce narrow kerf causing excessive friction, blade binding and
kickback.
▶ 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.
▶ Use extra caution when sawing into existing walls or other blind
areas. The protruding blade may cut objects that can cause kickback.
Lower guard function
▶ Check the lower guard for proper closing before each 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.
If the saw is 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 guard return spring. If the guard and
the spring are not operating properly, they must be serviced before
use. Lower guard may operate sluggishly due to damaged parts, gummy
deposits, or a build-up of debris.
▶ The lower guard may be retracted manually only for special cuts such
as "plunge cuts" and "compound cuts". Raise the lower guard by the
retracting handle and as soon as the blade enters the material, the
*2153713*
Printed: 06.06.2019 | Doc-Nr: PUB / 5292940 / 000 / 02
2153713 English 7