45
Adjusting additional handle (5) (Fig. 2)
Twist handle anticlockwise and set it to
a suitable side working position by
turning it about the drilling axis. Twist
handle clockwise to lock.
Fitting and setting depth stop (2)
(Fig. 4)
Release additional handle. Insert the
straight portion of the depth stop into
the hole and, using the inserted drill bit
as a guide, set to the desired drilling
depth. Lock handle.
8 – Operation
Switching On and Off
The power supply voltage must comply
with the data on the power tool rating
plate.
• Start: Press On-Off switch (3).
• Stop: Release On-Off switch (3).
Change-over: hammer-drilling,
chiselling, drilling
Select a suitable setting combination
with hammer on/off switch (4) and
selector switch (5) as shown in Figure 3.
When setting, ensure that the machine
is not running. The impact rate can be
steplessly adjusted by shifting between
the two symbols.
9 – Mode of operation (Fig. 3)
Working with the hammer drill (Fig. 3)
A: Spot-drilling without hammer action,
e.g. rendering, gas concrete
B: Hammer-drilling concrete, stone and
masonry
C: Chiselling without rotary action in
masonry or to detach slabs.
WARNING! Never operate the
power tool with rotary action
when the chisel is inserted!
A pneumatic hammer mechanism
generates the required impact for
hammer-drilling stone. This electro-
pneumatic principle produces a highly
elastic impact effect and a recoilless
operation. Unlike on the percussion drill,
the drilling performance does not
depend upon the pressure applied.
WARNING! A higher pressure will
therefore not increase drilling
performance!
Note
With a suitable adapter (not included in
the delivery) a key-type drill chuck for
C
B
MB-5402720-Bedien-0609 12.06.2009 10:43 Uhr Seite 45
