6. Initial Operation
6.1
Transport
During transport (20), the bench grinder must be
lifted and carried from the handling points marked
on page 3.
6.2
Power supply
Before plugging in, check that the rated mains
voltage and mains frequency, as stated on the
rating label, match with your power supply.
The grinder complies with protection class I and
must therefore only be connected to sockets
earthed according to specifications.
Always install an RCD with a maximum trip
current of 30 mA upstream.
DSD 200, DSD 250 (three-phase version):
Ensure that the grinding wheels have the correct
direction of rotation (the correct direction of rotation
is indicated by an arrow on the side safety guards).
If a grinding wheel is rotating in the wrong direction:
Unplug the grinder. The plug comprises of two
phase conducting pins that are mounted on a
rotating socket (phase changing switch). Use a
Phillips screwdriver to rotate this socket.
6.3
Installing workpiece support
Install workpiece support (8) as shown in illustrations
A, page 2.
6.4
Fitting spark deflector and eye
preservers
Install the spark deflector (10) and eye preservers (9)
as shown in illustrations B, page 2.
6.5
Installing machine safely
Place the machine on a stable workbench. Ensure
that the machine is securely seated.
The machine can also be bolted down (screws not
included in the scope of delivery). To do this, fasten
the securing screws through the holes in the rubber
feet.
If a stand or wall bracket is used (see Accessories
chapter): bolt down the machine.
6.6
Dust extraction connection (depending
on equipment)
If your machine is not equipped with a dust
extraction connection (6), fit an extraction device that
is suitable for double-wheeled bench grinders. Inner
diameter of extraction connection piece: 35 mm.
Before switching on the machine, ensure that the
extraction device is connected and being used
correctly.
6.7
Test run
Check the grinding wheels before initial use.
Test run
A test run of approx. 5 min without load must
be carried out before initial use. All persons must
stay clear of the danger zone when this is
performed.
.
7. Use
7.1
Adjusting the workpiece support
Adjust the workpiece supports (8) frequently to
compensate for wear of the grinding wheels (4).
The workpiece support must always be adjusted in
such a way that the angle between the workpiece
support and the tool is always greater than 85°.
The distance between the workpiece support and
grinding material must be as small as possible and
never greater than 2 mm (see illustration C, page 2).
If the grinding wheel is so badly worn that the
maximum distance of 2 mm can no longer be
maintained, the grinding wheel must be replaced.
7.2
Adjusting the spark deflector
Adjust the spark deflectors (10) regularly to
compensate for wear on the grinding wheels (4).
Release the 2 screws on the spark deflector and
shift the spark deflector.
The distance between the spark deflector and
grinding wheel must be as small as possible and
never greater than 2 mm (see illustration C, page 2).
If the grinding wheel is so badly worn that the
maximum distance of 2 mm can no longer be
maintained, the grinding wheel must be replaced.
7.3
Switching On and Off
Press the switch (11) (see illustrations D, page 2).
I
=
Switch on
0
=
Switch off
DS 125, DS 150: Avoid inadvertent starts: always
switch the grinder off when the plug is removed from
the mains socket or if there has been a power cut.
Restart protection (not in DS 125, DS 150):
When power is restored after a power failure, the
machine - which is still switched on - will not start
automatically for safety reasons. Switch machine
on and off again.
7.4
Dry grinding, belt sanding
- Stand in front of the grinder.
- Holding the workpiece with both hands, place the
workpiece on the workpiece supports (8) and
gently press it against the dry grinding wheel/
sanding belt. For optimum grinding/sanding
results, move the workpiece gently to and fro. This
also helps to distribute wear evenly on the
grinding material.
7.5
Wet grinding (TNS 175 only)
Only use the wet grinding wheel for grinding
when there is water in the water container.
(18). Roughly 1/3 of the wet grinding wheel should
be immersed in water. grinding results may
impaired if the water level is either too low or too
high.
- Stand to the left of the grinder, in front of the wet
grinding wheel.
- Holding the workpiece with both hands, lower it
onto the wet grinding wheel. You can also support
ENGLISH en
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