EIBENSTOCK EBM 250/2 RP Original Instructions Manual page 6

First, check the correspondence of voltage and frequency and compare it
with the data mentioned on the identification plate. Voltage differences
from + 6 % to – 10 % are allowed.
Use only 3-wire extension cable with protecting conductor and a sufficient
cross-section (min. 2.5 mm
lead to excessive power loss and to overheating of machine and cable.
The machine is equipped with a start-up speed limiter to prevent fast
expulsion fuses from unindented responding.
Water Connection
If the drill bit is not cooled enough with water, the diamond segments
could heat up and consequently get damaged and weakened. For this
reason, always make sure that the cooling system is not blocked.
In order to supply the machine with water, please proceed as follows:
Connect the tool to the water supply system or a water pressure vessel

using the GARDENA connector.
Always make sure that the machine only runs with enough clear water

as the seals get damaged when the machine is running dry.
Attention! The maximum water pressure should not exceed 3 bar!

Make sure that the segments are well cooled. If the drilling water is

clear, the segments are well cooled.
Overhead-drilling only with water collection ring.

In case of frost warning, drain the water system.

Changing Gears
The EBM 250/2 RP is equipped with a mechanical 2-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.
Warning!
!
Never apply force and change the gear only when the

machine is running down.
Never use tools, such as hammers or pliers to change

the gear.
). A cross-section which is too small could
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