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DeWalt D25831 Manual

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ENGLISH
34
4. Slide and rotate the side handle to the desired
position.
5. Lock the side handle in place by tightening the
knob (p).
Inserting and Removing SDS Max
®
Accessories (fi g. 1, 4A, 4B)
This machine uses SDS Max
®
bits and chisels (refer
to the inset in figure 4B for a cross-section of an
SDS Max
®
bit shank).
1. Clean the bit shank.
2. Pull back the locking sleeve (m) and insert the
bit shank.
3. Turn the bit slightly until the sleeve snaps into
position.
4. Pull on the bit, to check if it is properly locked.
The hammering function requires the bit to be
able to move axially several centimetres when
locked in the tool holder.
5. To remove a bit pull back the tool holder locking
sleeve/collar (m) and pull the bit out of the tool
holder (l).
Selecting the Operating Mode
(fi g. 1)
Hammerdrilling:
D25501, D25601, D25602, D25603
for concrete, brick, stone and masonry
drilling operations.
Hammering only:
D25501, D25601, D25602, D25603,
D25831
for chiselling and demolition applications.
In this mode the tool can also be used as
a lever to free a jammed drill bit.
1. To select the operating mode, rotate the mode
selector switch (f) until it points to the symbol of
the required mode.
It may be neccessary to twist the tool holder (l)
slightly to allow the mode selector switch (f) to
pass the position.
2. Check that the mode selector switch (f) is
locked in place.
Indexing the Chisel Position
(fi g. 5)
D25501, D25601, D25602, D25603, D25831
The chisel can be indexed and locked into 18
different positions.
1. Rotate the mode selector switch (f) until it points
towards the
position.
2. Rotate the chisel in the desired position.
3. Set the mode selector switch (f) to the
“hammering only” position.
4. Twist the chisel until it locks in position.
Setting the Electronic Speed and
Impact Control Dial (fi g. 1, 3)
D25601, D25602, D25603, D25831
Turn the dial (g) to the desired level. Turn the dial
upwards for higher speed and downwards for
lower speed. The required setting is a matter of
experience, e.g.
– when chiselling or drilling in soft, brittle materials
or when minimum break-out is required, set the
dial to a low setting;
– when breaking or drilling in harder materials, set
the dial to a high setting.
Setting the Two Stage Mechanical
Clutch (fi g. 3)
D25602, D25603
NOTICE: Always turn the tool off before
changing torque control settings or
damage to the tool may result.
Move the torque control lever (u) to setting 40Nm or
80Nm as needed for application.
• Clutch Setting 40Nm (s) is designed for most
drilling applications and is designed to easily
clutch out when the drill bit encounters re-bar or
other foreign substances.
• Clutch Setting 80Nm (t) is designed for higher
torque applications such as core-bits and deep
hole drilling and is designed to clutch out at a
higher torque threshold.
NOTE: If it is not possible to select position 80Nm,
run the unit under load and try again.
Each time the tool is plugged in, it will automatically
default to clutch setting 1 into clutch setting 40Nm
(s), the most sensitive setting.
Depth Rod
(ADDITIONAL ACCESSORY)
1. Push in and hold the depth rod release button
on the side handle.
2. Move the depth rod so the distance between
the end of the rod and the end of the bit equals
the desired drilling depth.
… 36 …


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