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GYS MULTIWELD 220M-C Manual Del Usuario página 16

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SEMI-AUTOMATIC FOR STEEL/STAINLESS STEEL (MAG MODE)
Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommenda-
tions printed on the front of the machine (fig. VI).
The MULTIWELD 250T-C/320T-C can weld Steel wire 0.6/1.2 mm, and Stainless Steel of 0.8/1.2 mm.
The MULTIWELD FV 220M-C can weld Steel wire 0.6/1.0 mm, and Stainless Steel of 0.8/1.0 mm.
The products are fitted to work with 0.8 mm steel wire (roller Ø 0.8/1.0). The contact tube, the groove of the roller and the sleeve
of the torch are all compatible with 0.8 mm wire. Should you wish to weld 0.6 wire, use a torch of maximum 3 m long. The contact
tip must be changed (fig. II-A) as well as the wire feeder's roller that must be replaced by an optional reference (042339) with a
0.6 diameter groove. In this case, the position in such a way to observe 0.6.
For use with Steel, the gas recommendation is argon + CO2. (Ar+CO2). The proportion of CO2 required will vary depending on
the use. For Stainless Steel, use the combination of 2% CO2. If welding using pure CO2 protection gas, you should connect a gas
preheater on the gas bottle (Gys reference 046511 for a 230 V version). You may also use a standard 36 V preheater module that
can be connected to the 36V power supply plug located nearby the soldering wire reel behind the lateral door (fig. I-13). Note that
this 36V DC power supply is also compatible with 36 V AC preheaters. For other specific gas requirements, please contact your gas
distributor. The gas flow in steel is between 8 and 12 liters / minute depending on the environment.
SEMI-AUTOMATIC WELDING FOR ALUMINIUM (MIG MODE)
Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommenda-
tions printed on the front of the machine (fig. VI).
The MULTIWELD 250T-C/320T-C/FV 220M-C can be equipped to weld with aluminium wire Ø 0.8 and 1.0 mm (fig. II-B).
For use with aluminium, the gas requirement is pure argon (Ar). For the specific gas requirements please contact your distributor.
The gas flow in Aluminium is between 15 and 25 Litres/minute depending on the environment, and the experience of the welder.
Below are the differences between welding with Steel and Aluminium :
- Specific rollers are needed for welding with Aluminium.
- Adjust the pressure of the drive rolls to prevent the wire being crushed.
- Only use a capilliary tube for welding with Steel or Stainless Steel.
- Use a special Aluminium Torch with a teflon sheath to reduce friction.
DO NOT cut the sheath close to the joint, it is used to guide the wire from the the rollers.
- Contact Tube : Use a special aluminium contact tube specific to the diameter of wire being used.
GASLESS WIRE WELDING
Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommenda-
tions printed on the front of the machine (fig VI).
The MULTIWELD 250T-C/320T-C/FV 220M-C can weld gasless wire to 0.9 to 1.2 mm, if the polarity is reversed (fig. III) respecting
a maximum pressure of 5Nm. For parameters of use, please refer to the instructions indicated on page 68. Welding gasless wire
with a standard nozzle can lead to overheating and deterioration of the torch. Remove the genuine nozzle (fig. III).
MIG / MAG SETTINGS PANEL
CONNECTION AND RECOMMENDATIONS
• Connect the earth clamp on the positive (+) or negative (-) terminal depending on the wire type (in general on the -) .
MODE SELECTION AND SETTINGS
Press the left button
modes only available on MIG Mode) .
1. Setting the welding voltage :
Adjust the welding voltage using the voltage setting knob
the work to be carried out. The voltage setpoint is indicated on the left side
display.
2. Setting the wire speed :
Adjust the wire speed using the central knob
be carried out. The speed setpoint is indicated on the central side display.
3. Inductance settings :
Adjust the inductance level using the inductance setting knob
value from MIN to MAX. The lower the inductance level, the harder and more
guiding the arc. The higher the inductance and the softer the arc with little
splatter.
Set the voltage output and the wire speed according to the thickness of the weld piece, following the instructions/ recommenda-
tions printed on the front of the machine (fig VI).
16
MULTIWELD 250T-C / 320T-C / FV 220M-C
to select MIG/MAG welding and press the right button
depending on the work to
to choose the trigger modes : 2T or 4T (trigger
depending on
V
MIG
V
, a relative
The black areas are not useful for this mode.
EN
A
m/min
MMA MIG
2T
MMA
MIG
MIG
4
5
3
2
+
+
4T
6
inductance
7

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