EIBENSTOCK EBM 250/2 RP Original Instructions Manual page 7

Drill Bit Changing
Attention!
The machine is heavy and when you use or sharpen it, it might heat
up enormously. You could burn your hands or get cut or ripped by
the segments. Before the beginning of all works on the tool you have
to disconnect the plug from the mains. Always use protective gloves
when changing the drill bit.
The drill spindle has a right-hand thread.
To hold on spindle always use a jaw wrench SW 32.
Never remove the drill bit with impacts because this way the machine will
be damaged. With some waterproof grease, which is put on the drill bit
thread, and a copper ring between spindle and drill bit you can remove
the drill bit easier.
Diamond drill bits with an 1 ¼" UNC female thread can be screwed
directly onto the working spindle.
For drill bits with R ½" male thread, adapters are available as accessories.
Always use drill bits which match the material which has to be drilled.
You can prevent the machine from damage if you only use drill bits which
are balanced and not deformed. Pay attention that diamond segments
have enough relief cut towards the drill bit body.
Using the Drilling Unit
In order to operate safely, please observe the following instructions:
Safety at work:
Make sure that your work place is free of anything that might disturb

your work.
Pay attention that your work-place is well-lit.

Make sure that you observe the conditions for the connection with the

power supply.
When laying the cables, make sure that it cannot be damaged by the

tool.
Make sure that you always can overlook the work place in a sufficient

way and that you always can reach all necessary control elements
and safety devices.
In order to avoid accidents, keep other persons away from your work

place.
Drill Bits
7