Installation; System Presentation; General - voestalpine Böhler MB 25 DgMig Instrucciones De Uso

Before installing this apparatus, the user must evalu-
ate the potential electromagnetic problems that
may arise in the surrounding area, considering in
particular the health conditions of the persons in
the vicinity, for example of persons fitted with pace-
makers or hearing aids.
Welding and cutting cables
To minimise the effects of electromagnetic fields follow the fol-
lowing instructions:
- Where possible, collect and secure the earth and power
cables together.
- Never coil the welding cables around your body.
- Do not place your body in between the earth and power
cables (keep both on the same side).
- The cables must be kept as short as possible, positioned as
close as possible to each other and laid at or approximately
at ground level.
- Position the equipment at some distance from the welding
area.
- The cables must be kept away from any other cables.
Earthing the workpiece
When the workpiece is not earthed for electrical safety reasons
or due to its size and position, the earthing of the workpiece
may reduce the emissions. It is important to remember that
the earthing of the workpiece should neither increase the risk
of accidents for the user nor damage other electric equipment.
The earthing must be made according to the local regulations.
Shielding
The selective shielding of other cables and equipment present
in the surrounding area may reduce the problems due to elec-
tromagnetic interference. The shielding of the entire welding
(cutting) equipment can be taken in considered for special
applications.

2 INSTALLATION

Installation should be performed only by expert
personnel authorised by the manufacturer.
During installation, ensure that the power source
is disconnected from the mains.
2.1 Installation
Do not drop or apply undue pressure on the
equipment.
Connection for MIG/MAG welding
- Disconnect the power supply from the power source.
- Connect the MIG torch to the central adapter (1), ensuring
that the fastening ring is fully tightened.
- Connect the signal cable to the appropriate connector (2).
- Connect the red coloured
inlet quick connector of the cooling unit.
- Connect the blue coloured
the outlet quick connector of the cooling unit.
- Open the right side cover.
- Check that the roller groove is consistent with the diameter of
the wire you wish to use.
- Unscrew the ring nut (3) from the spindle and insert the wire
spool.
Insert also the spool pin, insert the spool, reposition the ring
nut (3) and adjust the friction screw (4).
- Release the rolls lever of the wire feeder (5), sliding the end
of the wire into the wire guide bush and, passing it over the
roller, into the torch fitting. Lock the feed support in position,
checking that the wire has entered the roller groove.
- To load the wire onto the torch, press the wire feed push-
button.
- Connect the gas hose to the rear gas hose coupling.
- Adjust the gas flow from 10 to 25 l/min.

3 SYSTEM PRESENTATION

3.1 General

The DgMig series torches are digital MIG/MAG torches allowing
the main welding parameters to be controlled:
- welding current (Synergic MIG/MAG process)
- arc length (Synergic MIG/MAG process)
- wire speed (Manual MIG/MAG process)
- welding voltage (Manual MIG/MAG process)
- program recall
and the real values to be displayed for:
- welding current
- welding voltage
water pipe of the torch to the
water pipe of the torch to
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