 Install power lines in such a way that any damage by the drill can beavoided. Make sure to always keep the work area in view and to be able toreach all necessary operating elements and safety installations. Keep other persons away from your work area in order to avoidaccidents.Space requirements for operations and maintenanceKeep a free space for operations and maintenance of about 2 m around thedrill, whenever possible, so that you can work safely and have immediateaccess in case of a malfunction.DrillingPreparation When drilling into blocks make sure that they are well fixed andfastened. Before drilling into load-bearing elements, make sure that thefoundation are not damaged. Follow the instructions of the specialistsresponsible for the planning. Make sure not to damage gas or water pipes or power lines duringdrilling. Make sure that the drill core will not hurt anybody or cause damage toanything when falling out. Clear and secure the work area. When drilling through holes through ceilings, secure the area frombelow, as the drill core may fall downwards. If the drill core could cause damage when falling down, set up aconstruction 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 dowelsFor brickwork, expendinganchor must be used. Mark the position of the drill holes forthe fixing on the surface to be drilled. Drill a hole (Ø 15) 50 mm deep (A), intowhich the dowel M12 (B) is to beplaced;insert the dowel and secure thedowel with the doweling tool (C).

Makita DBM230 Original Instructions Manual