1 2 ” Z 1 L R B / T S C O R E D R I L L
6
Operations
Note
THOROUGHLY READ THROUGH THE ENTIRE MANUAL BEFORE
OPERATING THIS MACHINE!
PURPOSE
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The purpose of the 12”Z1 LRB/TS Core Drill is to drill through masonry, concrete or other mineral rock
types using annular coring bits.
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These drills are designed to be bolted to the drilling surface through their base.
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NOTE: Make sure the base fits completely on the surface and the base is securely fastened using
wedge anchors to bolt to the surface.
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These machines can be used vertically, horizontally or overhead (inverted) provided an acceptable work
environment. NOTE: For safety, when drilling horizontally or overhead a safety chain/strap should always
be used.
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CAUTION: If drilling overhead you are only permitted to use dry type core bits with a dust
collection system. “Wet” type holes overhead would allow water into the motor and create an
extremely dangerous situation.
OPERATIONAL PRINCIPLES
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The main drilling shaft rotates in a forward clockwise direction. The main drilling motor connects to the
tool spindle to make contact with a surface and slowly bore a hole. Using the feed handles on the side of
the drill, the user can raise or lower the drilling motor.
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These drills are ONLY to be used with diamond impregnated coring bits.
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When drilling with “wet” type bits, the bit ends pulverizes the material and the water brings the
material out of the cut.
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When drilling with “dry” type bits, the bit end pulverizes the material and dust brings the material
out of the cut.
MACHINE COMPONENTS
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The main components of the 12”Z1 LRB/TS are the spindle, gearbox, motor, carriage, drill stand and
wheeled base. The spindle is driven by the transfer case and the motor.
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These components must be not be removed except by a qualified technician. Power must be
disconnected prior to any service.
Chapter
3
