51
GB/IE
The area to be welded on the work-
piece must be free of rust and paint.
Choose the desired welding current
and wire feed depending on the
welding wire diameter, material
thickness and desired penetration
depth, as previously described.
Guide the torch nozzle
37
and hold
the welding mask
23
in front of the
face.
Press the torch button
8
, in order to
generate an arc. Once the electric
arc is burning, the device feeds wire
into the weld pool.
You can work out the ideal settings for
the welding current and the wire feed
rate by carrying out trial welds on a
test piece. A properly set electric arc
has a mild, uniform buzzing sound.
Reduce the wire feed rate in case of
a rough or hard rattle or switch to a
higher power level (increase welding
current).
If the welding lens is big enough, the
torch
7
is slowly guided along the
desired edge. The distance between
the torch nozzle and workpiece
should be as small as possible (it
must not be greater than 10 mm).
If necessary, oscillate a little to
increase the size of the weld pool.
For inexperienced welders, it is often
d
ifficult initially to create a decent
electric arc. To do so, the welding
current and wire feed rate must be
set correctly.
The penetration depth (corresponds
to the depth of the welding seam in
the material) should be as deep as
possible without allowing the welding
pool to fall through the workpiece.
If the wire feed rate is too high and/
or the welding current too low, the
welding wire will not melt properly.
Consequently, the welding wire
repeatedly dips in the welding pool
as far as the workpiece.
The slag can only be removed from
the seam once it has cooled down. To
continue welding an interrupted seam:
First remove the slag at the starting
point.
The electric arc is ignited in the weld
groove, guided to the connection
point, melted properly and finally the
weld seam is continued.
CAUTION!
Please note that the
torch must always be placed onto an
insulated surface after welding.
Always switch off the welding device
after completing welding work and
during breaks and pull the plug
5
from the mains socket.
z
Create a weld seam
Forehand welding
Push the torch forwards. Result:
The penetration depth is lower, broader
weld width, flatter weld bead (visible
surface of the seam) and greater fusion
error tolerance.
Backhand welding
The torch is dragged from the weld
seam (Figure W). Result: Greater
penetration depth, narrower weld width,
higher weld bead and lower fusion
error tolerance.
W
Using the device
Содержание PSGS 120 A1
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