Makita DBM230 Betriebsanleitung Seite 20

Insert the core drill tool with the affixed mounting plate into the drilling stand
which must be firmly anchored on the surface. Lock it with the turnstile (see page
18).
The DBM 230 is a protection class I insulated machine. For protection purposes
the tool may only be operated with a GFCI. Therefore a GFCI-switch is integrated
in the cable for use in a safety plug with ground.
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First, check the correspondence of available voltage and frequency against the
data on the identification plate.
+6 - -10% voltage difference is permitted. Use only three-wire extension cable
with protective conductor and a sufficient cross-section (min. 2,5 mm
section which is to small could lead to excessive power loss and to overheating
of the cable and the motor.
Recommended minimum cross section and cable lengths
Line voltage
110V
230V
If the drill bit is not sufficiently cooled with water, the diamond segments could
heat up which will damage and weaken them. Therefore you should always make
sure that the cooling system is not blocked. In order to provide the drilling tool
with water the following steps must be taken::
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Power connection
Caution!
- The GFCI safety switch must not be submerged in water.
- Do not use the GFCI switch for switching the tool on/off!
- Before operations check the proper functioning by pushing
the TEST-button.
1,5
20 m
50 m
Water connection
Plug the tool to the water supply or a water pressure vessel via the hose
fitting.
Ascertain that the tool is only operated with sufficient clean water as
otherwise the seals will get damaged when the tool is running dry.
Caution: Water pressure must not exceed 3 bar.
Make sure that the segments are cooled sufficiently. If the drilling water
is clear, cooling is adequate.
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cross section in mm
19
2
). A cross
2
2,5
40 m
80 m