4. Squeeze the drill trigger momentarily. If the
drill does not operate, the hoses might be
reversed. Verify correct connection of the
hoses before continuing.
Freehand Drilling
1. Observe all safety precautions.
2. Mount the spot-drilling aid onto the centering
collar to ensure precise positioning.
3. Screw on the desired drill bit (up to max. Ø 80
mm approx. 3 inches). Refer to the
DRILL
BIT INSTALLATION
for details. Manual
tightening is sufficient because the drill bit
will automatically fasten further during
drilling.
4. Connect the tool to water supply. For this
purpose the device comes with a 10 liter pump
barrel, which has to be pressurized first. You
may alternatively connect the device to a
water tap, using the
"Gardena"
hose
couplings. Maximum water pressure is
60 psi / 4 bar.
5. Finally connect the tool to the power source.
6. Move the hydraulic circuit control valve to the
ON
position.
7. Regulate the water valve to adjust the water
supply flow as desired.
8. With the so prepared drill, you may now
proceed to carry out your work.
9. Put the drill in drilling position and squeeze
the trigger to activate the drill.
10. Release the trigger to stop the drill.
11. The handle and the spot-drilling aid enable
controlled manual operation of the drill.
12. To change drill bits, proceed as described
above. Adhere to safety instructions!
13. For dismounting the drill upon completion of
drilling work, follow the mounting
instructions in reverse order.
Stand-aided Drilling
First, fix the stand at the point where you wish to
drill the opening or hole. To do so, drill a hole
matching the size of the corresponding screw
anchor screw the stand onto the surface. Align the
stand such that the drill bit will make contact with
the surface precisely at the point where you want
to drill the opening or hole.
1. Insert the drill from above into the
corresponding seat and fasten the core drill by
means of the hex head socket wrench SW 5.
2. Now, manually screw the corresponding drill
bit from below onto the drill bit adapter.
Manual tightening is sufficient because the
drill bit will automatically fasten further
during drilling operation.
3. If necessary to attain an angled drill hole,
adjust the stand position by swiveling the arm
of the stand.
4. Connect the tool to water supply. For this
purpose the device comes with a 10 liter pump
CAUTION
Never switch into gear #1 in freehand drilling operation.
This delivers the highest torque.
WARNING
To avoid injury, do not use the valve trigger lock in
freehand drilling operation! Use valve trigger lock in
stand-aided drilling operation only!
CAUTION
Monitor continuously the water supply to ensure that
sufficient water is supplied to the cut surface to avoid
unnecessary wear of drilling equipment.
Operating Instructions
9
