Operation Manual

ENGLISH
28
It may be neccessary to twist the tool holder (h)
slightly to allow the mode selector switch (g) to
pass the “0” position.
2. Check that the mode selector switch (g) is
locked in place.
Indexing the Chisel Position
(fi g. 4A, 4B)
The chisel can be indexed and locked into 24
different positions (fig. 4B).
1. Rotate the mode selector switch (g) until it
points towards the “0” position.
2. Rotate the chisel in the desired position.
3. Set the mode selector switch (g) to the
“hammering only” position.
4. Twist the chisel until it locks in position.
Setting the Electronic Speed and
Impact Control Dial (fi g. 2)
Turn the dial (c) 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 Torque Control Switch
(fi g. 2)
D25701/D25730
The tool selects low torque position automatically
every time the tool is plugged in.
1. To select high torque, slide the torque control
switch (f) to the right until it locks into place.
2. To select low torque, slide the torque control
switch (f) to the left until it locks into place.
3. It may be neccessary to twist the tool holder
slightly to allow the mechanism to engage.
Assembling and Fitting the Side
Handle (fi g. 5A–5C)
The side handle (j) can be mounted in front or in rear
position on either side of the machine to suit both
RH- and LH-users.
WARNING: Always operate the
tool with the side handle properly
assembled.
MOUNTING IN FRONT POSITION (FIG. 5A, 5B)
1. Snap the steel ring (q) over the collar (i) behind
the tool holder (h). Squeeze both ends together,
mount the bush (o) and insert the pin (p).
2. Place the side handle clamp (n) and screw on
the clamp wheel (k). Do not tighten.
WARNING: Once assembled, the side
handle clamp should never be removed.
3. Screw the side handle (j) into the clamp wheel
and tighten it.
4. Rotate the side handle mounting assembly to
the desired position. For drilling horizontally
with a heavy drill bit, we recommend to place
the side handle at an angle of approx. 20° for
optimum control (fig. 5B).
5. Lock the side handle mounting assembly in
place by tightening the clamp wheel (k).
MOUNTING IN REAR POSITION (FIG. 5C)
The rear position is particularly useful when drilling
down into a floor.
1. Unscrew the side handle (j) and remove it
from the front position. Leave the side handle
mounting assembly in front position.
2. Screw the side handle directly into one of the
rear side handle positions (l) on either side of the
tool.
OPERATION
Instructions for Use
WARNING:
• Always observe the safety instructions
and applicable regulations.
• Be aware of the location of pipework
and wiring.
• Apply only a gentle pressure to
the tool (approx. 20 kg). Excessive
force does not speed up drilling but
decreases tool performance and may
shorten tool life.
• Always hold the tool firmly with both
hands and ensure a secure stance.
Always operate the tool with the side
handle properly assembled.
Proper Hand Position (fi g. 1, 6)
WARNING: To reduce the risk of
serious personal injury, ALWAYS use
proper hand position as shown.