Makita DBM230 Notice Originale page 24

Install power lines in such a way that any damage by the drill can be
avoided.
Make sure to always keep the work area in view and to be able to
reach all necessary operating elements and safety installations.
Keep other persons away from your work area in order to avoid
accidents.
Space requirements for operations and maintenance
Keep a free space for operations and maintenance of about 2 m around the
drill, whenever possible, so that you can work safely and have immediate
access in case of a malfunction.
Drilling
Preparation
When drilling into blocks make sure that they are well fixed and
fastened.
Before drilling into load-bearing elements, make sure that the
foundation are not damaged. Follow the instructions of the specialists
responsible for the planning.
Make sure not to damage gas or water pipes or power lines during
drilling.
Make sure that the drill core will not hurt anybody or cause damage to
anything when falling out. Clear and secure the work area.
When drilling through holes through ceilings, secure the area from
below, as the drill core may fall downwards.
If the drill core could cause damage when falling down, set up a
construction to hold back the drill core.
Make sure that the drill bit is fixed correctly.
Use the correct tools appropriate for the material to be worked upon.
Take care that the drill stand is attached firmly to the surface.
The following possibilities exist for mounting the P-54190:
Fixing the mount in concrete by means of dowels
For brickwork, expending
anchor must be used.
Mark the position of the drill holes for
the fixing on the surface to be drilled.
Drill a hole (Ø 15) 50 mm deep (A), into
which the dowel M12 (B) is to be
placed;insert the dowel and secure the
dowel with the doweling tool (C).