DeWalt D25012 Guide D'utilisation page 10

To insert bit, insert shank of bit about 3/4" (19 mm), no further than
7/8" (22 mm) into chuck. Push and rotate bit until it locks in place. The
bit will be securely held.
To release bit, pull the chuck sleeve (E) back and remove the bit.
OPERATION
WARNING: To reduce the risk of injury, turn unit off
and disconnect it from power source before installing and
removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.
WARNING: To reduce the risk of personal injury, ALWAYS
ensure workpiece is anchored or clamped firmly. If drilling thin
material, use a wood "back-up" block to prevent damage to the
material.
WARNING: To reduce the risk of personal injury, ALWAYS
operate the tool with the side handle properly installed and
securely tightened. Failure to do so may result in the side handle
slipping during tool operation and subsequent loss of control. Hold
tool with both hands to maximize control.
Proper Hand Position (Fig. 1, 4)
WARNING: To reduce the risk of serious personal injury, ALWAYS
use proper hand position as shown.
WARNING: To reduce the risk of serious personal injury, ALWAYS
hold securely in anticipation of a sudden reaction.
Proper hand position requires one hand on the side handle (C), with
the other hand on the main handle (B).
FIG. 4
Overload Clutch
If the drill bit becomes jammed or caught, the drive to the drill spindle
is interrupted by the overload clutch. Because of the forces that occur
as a result, always hold the machine securely with both hands and
take a firm stance.
Drilling Tools
The machine is intended for hammerdrilling in concrete, brick and
stone. It is also suitable for drilling without impact in wood, metal,
ceramic and plastic.
Drilling (Fig. 1)
WARNING: To reduce the risk of serious personal injury,
turn tool off and disconnect tool from power source before
making any adjustments or removing/installing attachments
or accessories.
WARNING: To reduce the risk of personal injury, ALWAYS
ensure workpiece is anchored or clamped firmly. If drilling thin
material, use a wood "back-up" block to prevent damage to the
material.
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