Parkside 332967_1907, Operation And Safety Notes

Page: 79 / 118

78 GB/MT
Please proceed as follows once
you have electrically connected
the welding device:
„
Connect the earth cable to
4
the
workpiece that is to be welded using
the earth terminal. Please ensure
good electrical conductivity.
„
The area to be welded on the work-
piece must be free of rust and paint.
„
Choose the desired welding current
depending on the welding wire
diameter, material thickness and
desired penetration depth.
„
Guide the torch nozzle
7
and hold
the welding mask
22
in front of the
face.
„
Press the torch button
9
, in order
to feed the welding wire. Once the
electric arc is burning, the device
feeds welding wire into the weld
pool.
„
You can work out the ideal settings
for the welding current by carrying
out trial welds on a test piece.
A properly set electric arc has a
mild, uniform buzzing sound.
„
In case of a rough or hard rattle,
switch to a higher power level
(increase welding current).
„
If the welding lens is big enough, the
torch
8
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
difficult initially to create a decent
electric arc. To do so, the welding
current 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 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.
Setting appropriate parameters
for current and voltage for weld-
ing aluminium with aluminium
wire.
For welding aluminium we recommend
using lower voltages than you would
use for welding iron/steel. To set the
appropriate voltage range, you can
proceed as follows: prepare the device
as described under “Adaptation of
device to solid welding wire with inert
gas”. To weld aluminium wire select the
setting “1.0/Al(5356)” by pressing the
welding wire selector key
36
. Now press
the voltage reducer selector key
37
,
until the LED next to “U” flashes. Now
set a current of approx. 0.5 A. Press the
voltage reducer selector key
37
, until the
LEDs next to the “U” and “A/VRD” are
no longer illuminated. The voltage when
MIG welding can now be adjusted in
a lower voltage range which is more
suited for aluminium welding. If the
rotary switch for adjusting the welding
current
6
is simultaneously pressed and
rotated, then the welding current can
be altered in 10 A steps. As guideline
values, to weld 2 mm aluminium sheet
you can set 14.5 Volt and a current of
91 Amps. The optimum welding settings
Using the device