User Manual

8
shank pilot drill into the taper in the
extension arbor.
NOTE: the pilot drill must be suitable for
masonry and be long enough to stand
proud of the core bit.
●REMOVING THE CORE BIT-
DISCONNECT TOOL FROM POWER SOURCE.
Removal is the opposite of installation of
the bit.
Using 2 wrenches, loosen and remove the
diamond core bit.
●SET UP – WET DRILLING MODE
1. If it is in place, remove the dry drilling
spindle adaptor.
2. First use a copper washer (not
included) then add some anti-seize
compound or grease to the threads,
then attach an appropriate wet
drilling core bit (not included) to the
spindle and tighten with the wrench
(supplied) on the spindle and one
correct sized wrench (not included)
on the bit coupling.
3. Attach the hose adaptor to the water
hose and connect by the quick
release connector. Keep the water
control valve closed until drilling
begins.
4. Attach a GFCI or PRCD device (not
included) inline with the power source
and plug in the power supply cord.
5. Put on all eye and hearing protection
before beginning drilling.
●SELECTING SPEEDS
There are 3 speed ranges to suit the bit size
and aggregate hardness. Choose the
slowest speed for large diameter bits and
hard aggregates.
CAUTION: Never attempt to change gears
on a running machine! Only adjust when
the machine is at rest.
Rotate the gear selector while turning the
spindle slightly by hand to help the gear to
engage fully.
●SETTING THE ROTATION SPEED
In addition to the mechanical speed
ranges, the speed is also adjusted
electronically by turning the Variable
Speed Thumbwheel. To adjust, simply turn
the wheel to the right (clockwise) to
increase speed and to the left
(counterclockwise) to decrease the speed.
Dry arbor adaptor
Dry drilling core bit
Spindle
Gear selector