Causes And Operator Prevention Of Kickback - DeWalt DC413 Guide D'utilisation

• Avoid prolonged contact with dust from power sanding,
sawing, grinding, drilling, and other construction activities.
Wear protective clothing and wash exposed areas with soap
and water. Allowing dust to get into your mouth, eyes, or lay on
the skin may promote absorption of harmful chemicals.
WARNING: Use of this tool can generate and/or disburse dust,
which may cause serious and permanent respiratory or other injury.
Always use NIOSH/OSHA approved respiratory protection appropriate
for the dust exposure. Direct particles away from face and body.
WARNING: Always wear proper personal hearing protection
that conforms to ANSI S12.6 (S3.19) during use. Under some
conditions and duration of use, noise from this product may
contribute to hearing loss.
WARNING: Always use eye protection. All users and bystand-
ers must wear eye protection that conforms to ANSI Z87.1.
WARNING: When not in use, place grinder on a stable surface
where it will not move inadvertantly, roll or cause a tripping or
falling hazard. The grinder may stand upright on the battery pack but
may be easily knocked over. Serious personal injury may result.
CAUTION: To reduce the risk of personal injury, use extra care
when working into a corner or edge because a sudden, sharp
movement of the tool may be experienced when the wheel or other
accessory contacts a secondary surface or a surface edge.
• The label on your tool may include the following symbols. The
symbols and their definitions are as follows:
V ............volts
Hz ..........hertz
min ........minutes
......direct current
..........Class I Construction
..............(grounded)
A ................amperes
W ...............watts
..............alternating current
n o ..............no load speed
...............earthing terminal
..............safety alert symbol
...........Class II Construction .../min ........revolutions or
..............(double insulated)
BPM ......beats per minute
Causes and Operator Prevention
of Kickback
• Kickback is a sudden reaction to a pinched, bound or misaligned
wheel, wire brush or flap disc causing an uncontrolled cut-off tool
to lift up and out of the workpiece toward the operator.
• When the wheel is pinched or bound tightly by the workpiece, the
wheel stalls and the motor reaction drives the unit rapidly back
toward or away from the operator.
• Kickback is the result of tool 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 unit and position
your body and arm to allow you to resist kickback forces.
Kickback forces can be controlled by the operator, if proper
precautions are taken.
• When wheel is binding, or when interrupting a cut for any
reason, release the trigger and hold the unit motionless
in the material until the wheel comes to a complete stop.
Never attempt to remove the unit from the work or pull the
unit backward while the wheel is in motion or kickback may
occur. Investigate and take corrective actions to eliminate the
cause of wheel binding.
• When restarting a cut-off tool in the workpiece, check that
the wheel is not engaged into the material. If wheel is binding,
it may walk up or kickback from the workpiece as the tool is
restarted.
4
...................reciprocation per
...................minute