Instruction manual

Revision date: 26.02.2013 Page 14 of 32
8 OPERATING INSTRUCTIONS
1. Welding wire has been selected
2. Correct polarity to the torch / welding wire has been selected
3. Wire spool has been inserted, spool brake has been checked, wire inserted in the central connector, and
the idle roll arm has been closed.
4. Torch has been connected to the front of the machine
5. Return clamp has been properly connected to the work piece
6. Correct shielding gas (if required) has been connected to the gas inlet at the back of the machine and to
a gas cylinder with gas flow regulator, and the cylinder valve has been opened.
7. The wire compartment is closed and the machine switched on.
Next steps
8. Set the lowest wire feed speed, press the torch trigger. The gas solenoid valve will now open and allow
to adjust correct gas flow on the flow regulator.
9. Pull off the nozzle from the torch, unscrew the contact tip and straighten the gun cable assembly
10. Press wire feed knob (6) on the front panel to feed the wire out through the torch neck.
11. Replace the contact tip and nozzle.
12. Set wire speed and voltage in accordance with the wire specifications and proceed with the welding.
13. When finished, close the gas cylinder and press the trigger shortly to vent off gas pressure in hoses and
machine before switching off and unplugging.
Examples on parameter settings
Unitor Wire
Wire size
mm
Groove type
Wire
speed
m/min
Volt
and
polarity
Shielding
gas
Gas flow
GPS W 200
0,8
V
7,5
22V +
Ar/CO2
10-15 l/min
MS W 201
0,8
V-serrated
12
20V -
No gas
S 316 M-GF 221
0.9
V-serrated
11
22V +
Ar/CO2
22-25 l/min
S 309 M-GF 222
0.9
V-serrated
13
24V +
Ar/CO2
22-25 l/min
Icuni W 239
0,8
V
7,5
22V +
Ar
15-20 l/min
Ialbro W 237
0,8
V
7,5
22V +
Ar
15-20 l/min
Alumag W 235
1,0
U
12
23V +
Ar
15-20 l/min
Alumag W 235
1,0
U
7,5
22V +
Ar
15-20 l/min
CuSi3Mn*
1,0
V
7,5
22V +
Ar
15-20 l/min
CuSi3Mn*
1,0
V
5,5
18V +
Ar
15-20 l/min
*MIG brazing wire on request. Activate “soft arc” on the front panel for brazing
Torch Neck
Contact Tip
Nozzle