6
Manual drilling
Dry drilling:
Mount the SPIT SDD system for dust removal.
Insert the pilot drill in the shank or the telescopic centring device into the foreseen place on to
the additional handle.
centring device and complete your drilling.
Wet drilling:
must for overhead drilling.
Insert the telescopic centring device into the additional handle. Open the ball valve and
handle. If the light turns red, there is overpressure, and you need to reduce the pressing force.
Cautiously pull the tool out of the borehole.
Overload protection
and thermal overload protection.
Mechanical:
In case of sudden jamming of the diamond drill bit, the drilling spindle is unclutched from the
motor by means of a slip clutch.
Electrical:
The LED lights green during idle running or normal load. With overpressure, the light
can be continued.
Thermal:
In case of permanent overload, a thermocouple protects the machine against
the ambient temperature.
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