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Assembly / Initial Use
M
32
Switch the welding unit off again.
Screw the welding nozzle
Ensure that the welding nozzle
diameter of the welding wire being used (see
Fig. N).
For the welding wire supplied (Ø 0.9 mm) the
welding nozzle 14 with the next highest diameter
of 1.0 mm must be used.
N
14
Push the burner nozzle
neck
by rotating it clockwise (see Fig. O).
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O
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To prevent the hazard of an
electrical shock, injury or damage, pull the mains
plug from the socket before maintainance or pre-
paring for work.
40 GB/IE/NI
12
back on.
14
matches the
14
12
back onto the torch
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32
Initial Use
Switching the unit on and off
Switch the welding unit on and off using the
main switch
. If you do not use the welding
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unit for an extended period, pull the plug out
of the mains socket. It is only then that the unit
will not be supplied with any current.
Adjusting the welding current
You can adjust the desired welding current using
the switches
on the front of the welding unit.
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If, for example, the MIN switch
are up, the welding current amounts to 40 A and
the duty cycle is 60 %.
If, for example, the MAX switch
are down, the welding current amounts to 90 A
and the duty cycle is 10 %.
The required welding current depends on the weld-
ing wire diameter, the material thickness and the
desired weld penetration depth.
Adjusting the wire feeder
To achieve a consistent weld, the adjustment wheel
for the wire feeder
can be used to finely adjust
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the wire feeder. It is recommended that you start
with a setting in the centre position and reduce or
increase the speed if necessary.
The required welding current depends on the weld-
ing wire diameter used, the material thickness, the
desired weld penetration depth and the gaps to be
bridged on the work pieces to be welded.
Overload protection
The welding unit is protected against thermal over-
load with an automatic protective device (thermostat
with an autorecloser). The overload protection inter-
rupts the process when the circuit has been over-
loaded and the yellow control lamp
If the protective device has been activated, al-
low the unit to cool down (approx. 15 minutes).
As soon as the yellow control lamp for overload
and switch 1
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9
and switch 2
8
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illuminates.
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