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Changing Drill Bits
Attention!
When you use or sharpen the machine, it might heat up enormously.
You could burn your hands or get cut or ripped by the segments.
Therefore, always use protective gloves when changing the drill bit.
The drilling spindle has a right-hand thread. To ease screwing on and off,
always use a SW 32 open-end wrench at the drilling spindle. Never use a
hammer, because this may damage both the drill bit and the tool.
Some water-resistant grease on the drilling spindle threat or a copper ring
between spindle and drill bit will simplify removal of the drill bit.
After Drilling
When you have finished drilling:
Pull the drill bit out of the hole.
Turn the motor off by using the motor switch and not the PRCD
switch.
Close the water supply.
Removal of the core when it sticks in the drill bit:
Separate the drill bit from the motor (if possible).
Put the drill bit in a vertical position.
Knock carefully on the pipe by using a wooden hammer shank till the
drilling core slips out. Never throw the drill bit against a wall by force
or set about it with tools, such as hammer or jaw wrench. Otherwise,
the pipe could go out of shape and neither the drilling core can be
extracted nor the drill bit is reusable.
Removal of the core by blind holes:
Break off the core with a cotter or lever, or in pieces. Lift the core out with
appropriate tongs or drill a hole with a dowel in the core, screw an eyebolt
in and pull the core out.
Since the drill rig does not belong to the supply, some of its most
important features are described here.
For this purpose, please refer to the drill rig's operating instructions.
Vacuum fastening:
For the vacuum, make sure that it is sufficient (minimum -0.8 bar). Make
sure that the gaskets are not worn.
Attention! Do not use the vacuum fastening on the wall or overhead!
Please ensure that the leveling screws are adjusted in such a way that they
do not protrude from the underside of the drill stand foot, otherwise the
vacuum is affected and the stand may come away from its support.
Rig Drilling
25
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