7
SET-UP & PREPARATION
Fastening the base (fig. 3)
WARNING!
It is essential to secure the base (10) to the work surface to
reduce the risk of injury and to protect the core drill from damage. An
unsecured core drill and stand could rotate during drilling, cause the
core bit to chatter against the work surface or bind in the hole, which can
fracture the diamond segments
Place the core drill stand on a solid, flat and level surface before mounting the
core drill. When the core drill stand can shift or rock, the power tool or workpiece
cannot be steadily and safely controlled.
The supplied anchor sleeve (15) is usually suitable for fastening core drilling
equipment to uncracked concrete. Under certain conditions it may be necessary
to use an alternative fastening method.
1.
To set the anchor sleeve (15), use an 16mm drill bit (not supplied) suitable for
concrete to drill the pilot hole. Drill the pilot hole 50mm deep at a distance of
240mm from the centre of the hole to be drilled.
2.
Clear out as much concrete dust as possible
and fit the anchor sleeve (15) inside the
pilot hole.
3.
Screw the anchor bolt (16) into the anchor
sleeve (15).
4.
Place the slot in the base (10) over the
anchor bolt (16) and align the core drill
stand.
5.
Always be sure to level the base (10) using
the levelling bolts (9) at each corner of the
base (10) so that the core drill bit contacts
the work-piece squarely and cuts straight.
6.
Place the large washer (12) and screw the
clamping nut (13) onto the anchor bolt (16).
7.
Use a suitable open-end spanner (not included) to tighten the clamping nut (13)
firmly. Take care to ensure that the levelling bolts (9) make firm contact with the
underlying surface.
Fig. 3
