Electrical Safety
The DBM 131 core drilling machine is a safety class II tool.
In order to protect the operator, the machine shall only be operated using a residual current
device (RCD) during wet cutting. Operating the machine without a working PRCD safety switch
poses danger to life and health.
Therefore, the machine
is always supplied with an integrated PRCD safety switch to be used with a
grounded socket.
No changes shall be made to the machine. In order to ensure safe operation of the machine, damages
on the PRCD safety switch shall be immediately removed by a qualified service centre.
Auxiliary handle
Do only use the machine for hand held drilling together with the auxiliary handle that is supplied with it. It
is attached to the collar and fixed by turning the handle.
Gear Shifting
Depending on the drill bit diameter, you can choose between two possible speeds.
For drilling diameters up to 70 mm, we recommend the 2
nd
gear •• (pointed side of the gear switch points
at the motor) and for drillings over 70 mm, the 1
st
gear • shall be used (pointed side of the gear switch
points at the spindle). These values are reference values only. When setting the speed, the instructions
of the tool manufacturer should be observed.
When it is not possible to move the gear switch into its end position when the machine is stopped,
slightly turn the drilling spindle.
Caution! Do only change gears when the machine is stopped and shift clockwise!
Switching the machine on/off
The drilling machine is equipped with an electronic positioning switch including a locking device.
The more the switch is pressed, the higher the speed. This allows for precise drilling when starting a
hole.
Under normal working conditions, always work at maximum speed.
Caution! Do not lock the switch during hand held drilling!
Short-Time Operation – hand held drilling
Starting the machine:
Press on/off switch
Stopping the machine:
Release on/off switch
Permanent Operation
Starting the machine:
Press on/off switch and while keeping it pressed, engage the lock
button
Stopping the machine:
Press on/off switch again and release it
Water Supply
The DBM 131 core drilling machine is suitable for both wet and dry drilling.
•
The water supply permanently remains on the spindle.
•
Never drill without water supply since the spindle could be damaged.
If there is a leakage between the black plastic ring and the housing, the water supply shall be exchanged
and/or the shaft seals shall be substituted with new, slightly grease-lubricated shaft seals.
These are available at your specialised dealer’s or manufacturer’s shop.
•
The water supply (black plastic ring) can only be removed by pulling it down.
•
The assembly of the water supply shall be carried out by sliding it on until it snaps!
•
Pay attention to the position of the dowel pin (for protection against twisting).
