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4.9
Before starting work
WARNING!
For drilling jobs, it is necessary to clamp the workpiece firmly to prevent the bit catching
on the pieces. A machine vice or clamping claws is a suitable clamping device.
Before starting work, select the desired speed. It is depending on the used drilling diameter and
on the material.
If required, adjust the desired drilling depth by means of the drilling depth stop in order to obtain
a uniform drilling depth.
4.10
During work
WARNING!
Seizing of clothes and / or hair.
Make sure to wear well-fitting work during drilling work.
Do not use gloves.
If necessary, use a hairnet.
The smaller the bit the more easily it may break. In the case of deep drilling, remove the bit
from time to time to remove filings from the drill. Add a few drops of oil to reduce friction and
prolong the service life of the bit.
4.11
Disassembly, assembly of drill chucks and drill bits
CAUTION!
Preventive safety measure. Disconnect the machine from the electrical supply.
ATTENTION!
The tool and/or the drill chuck will fall down. Hold the tool or the drill chuck while drifting it
out.
The drill chuck of the bench drill is mounted on a taper mandrel MT2. Taper mandrels can be
disassembled with an common drill drift. Use a drift wedge or a commercially available drift
punch to loosen the taper connection between spindle (1) and taper mandrel (3).
Disconnect the machine from the electrical
supply. Pull out the mains plug.
Turn the drilling spindle (1) until the open-
ings (4) of the sleeve and of the drilling spin-
dle are superimposed.
Hold the tool with your hand.
Release the tool from the drill spindle with a
drift punch.
Hold the tool by hand and remove it from
the conical seat.
Operation
Version 1.0.1 - 2021-05-11
2
1
3
Img. 4-3:
Translation of original instruction
4
DQ20V
EN
59
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