Migatronic RALLY MIG 161i Manual De Instrucciones página 14

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Connection of return current cable
The return current cable is connected to the negative pole
(6).
Torch adjustment (Dialog torch)
The current size can be adjusted both from the machine and
the welding torch if a welding hose with dialog torch is in
use. The torch adjustment is passive without Dialog torch.
Inching
The function is used for
wire inching e.g. after
change of wire. Wire
inching starts by
pressing the green key
pad and simultaneously
triggering the torch
trigger. Wire inching
continues even though
the green key pad has been released. It does not stop until
the torch trigger has been released again.
Selecting welding polarity
Polarity reversal is recommended for certain types of
welding wire, in particular Innershield welding wire. For
recommended polarity, please refer to the welding wire
packaging.
Change of polarity:
1. Disconnect the machine from the mains supply.
2. Dismount the milled nuts at the poles (fig. 1).
3. Reverse the cables (fig. 1).
4. Mount the milled nuts (fig. 1).
5. Exchange earth cable from minus to plus (fig. 2).
6. Connect the machine to the mains supply.
Adjustment of wire brake
The wire brake must ensure that the
wire reel brakes sufficiently quickly
when welding stops. The required
brake force is depending on the
weight of the wire reel and the
maximum wire feed speed. A brake
torque of 1.5-2.0 Nm will be
satisfactory for most applications.
Adjustment:
Adjust the wire brake by fastening or loosening the self-
-
locking nut on the axle of the wire hub
Change of wire liner
Installing the TIG torch
14

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