EIBENSTOCK EBM 352/3 Original Instructions Manual page 23

Warning!
 Only change gears whilst the tool is not in operation!
 Never apply force
 Never use tools, such as hammers or pliers to change
the gear!
Diamond drill bits with a 1¼" 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.
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.
Changing Gears
The EBM 352/3 is equipped with a
mechanical 3-speed oil-bath gearbox.
Select the speed according to the drilling
diameter (ref. to the tool's identification
plate).
Use the speed selection to change to the
next higher or lower speed until it locks.
Change the speed only when the tool is not
running; slightly turn the working spindle to
ease the speed change.
Drill Bits
23