Norton clipper CDR 133 Operating Instructions And Spare Parts List page 17

VERS.2015.05.19
Fixation with a dowel
To fix the drill rig, you need a 15mm-dowel, a 30cm-long threaded rod, a washer and a wing nut.

Bore a 15mm-diameter and 50mm-depth hole and clean it.

Use the appropriate tool to set the dowel in the hole.

Screw the threaded rod in the dowel.

Place the rig so that the threaded rod goes through the oblong hole in the base.

Insert the washer on the rod, and screw the wing nut thoroughly.

You can adjust the rig by using the screws in the corners of the base.
Fixation with a vacuum pump

Fix the pump on the base of the rig.

Place the rubber joint under the base.

Place the machine where you want to bore, and hold it firmly.

Start the vacuum pump. You have to reach a pressure under 0,65bar to have a sufficient
adhesion of the rig.

If you cannot reach this pressure, try to smooth the surface for example with plaster.
5.2.3 Drilling perpendicularly to the surface
Once your motor is engaged on the right gear, and the rig placed and fixed at the right position, you
can begin your cut. Follow these instructions:

Put the handle back on the nut, which allows the movement of the cutting head.

Engage the P.R.C.D.

Open the water supply.

Start the motor with the core bit not touching the surface.

Using the handle, lower slowly the core bit until it lightly touches the surface.

Slowly turn the handle to make the first centimetre of your drilling. By doing so, you ensure that
your hole will be perfectly centred.

You can then increase the drilling feed speed. If you drill too slowly, you lower the machine
efficiency. Drilling too fast results in premature wear of the diamond segments.
5.2.4 Slanting holes
You can incline the head along the rig to make slanting holes:

Remove the screw on the front of the rig, and loosen the two screws on the side of the rig. Keep
the front screw, as you will have to reassemble it next you want to use the rig perpendicularly to
the surface.

Adjust the rig until you reached the required angle.

Retighten the two screws on the side of the rig.
Start drilling very slowly because the bit attacks the drilled material only with a little part of its cutting
surface, even with only one of its diamond segments. By drilling slowly, you avoid misalignment of
the core bit.
5.2.5 Drilling of steel rods in reinforced concrete
When you see that:

The core bit goes ahead very slowly.

The force you have to make on the hand wheel increases.

The water going out of the hole is clear and there are some metallic splints in it.
Kit CDR 133 + CDM 163_MAN_EN
17