17
GB
Now the wire feed system pushes the
welding wire through the cable assembly
12
and the torch
10
.
As soon as 1 – 2 cm of the wire
protrudes from the torch neck
33
,
release the torch
11
button again
(see Fig. P).
Switch off the welding device on the
main switch.
Screw the welding nozzle
15
back on.
Make sure that the welding nozzle
15
matches the diameter of the welding
wire used (see Fig. Q). When using the
delivered welding wire (Ø 0.9 mm),
the welding nozzle with the
15
labelling
0.9 mm must be used.
Push the torch nozzle
9
back on to the
torch neck with a turn tot the right
33
(see Fig. R).
Always unplug the mains
plug from the socket prior to each mainten-
ance task or preparatory work in order to
prevent the risk of an electric shock, injury or
damage.
z
Using the device
z
Switching the device on
and off
Switch the welding device on and off
on the main
5
switch. If you do not
intend to use the welding device for an
extended period, remove the plug from
the power socket. This is the only way to
completely de-energise the device
z
Setting the welding current
The switches on the front of the welding de-
vice can be used to set the desired welding
currents.
The rotaryswitch for welding current setting
7
on the front of the welding machine can
be used to set the desired welding currents.
The corresponding settings can be found in
the following table.
Voltage (V)
Wire feed
Welding
current
A
2 – 4
25 – 75
B
3 – 5
55 – 85
C
3 – 6
60 – 100
D
4 – 8
65 – 105
E
5 – 9
75 – 110
F
5 – 10
80 – 115
G
5 – 10
85 – 120
The necessary welding current depends on
the welding wire diameter used, the material
thickness and the desired penetration depth.
z
Setting the wire feed
In order to generate a constant arc, the
setting wheel for the wire feed
8
can be
used to fine-tune the wire feed. You are
recommended to use a setting in the middle
range to start with, and then reduce or
increase the speed as required.
The necessary welding current depends on
the welding wire diameter used, the material
thickness and the desired penetration depth.
Similarly, the gaps to be bridged between
the workpieces to be welded must be ob-
served.
Overload protection
The welding device is protected against
overheating by means of an automatic
protection device (thermostat with automatic
restart). The protective device interrupts
the overload of the current circuit and the
Assembly / Using the device
Summary of Contents for PFDS 120 A2
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