Assembling Multilock Welding Torches; Note Regarding The Inner Liner With Gas-Cooled Welding Torches - Fronius MTG 250i Operating Instructions Manual

Assembling Mul-
NOTE!
tilock welding
torches Risk from incorrect assembly of the welding torch.
This can result in damage to the welding torch.
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Note regarding
NOTE!
the inner liner
with gas-cooled Risk due to incorrect inner liner insert.
welding torches This can result in poor weld properties.
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Before fitting a torch body, ensure that the interface between the torch body
and the hosepack is clean and undamaged.
In the case of water-cooled welding torches, increased resistance may arise
when tightening the union nut due to the construction of the welding torch.
Always tighten the union nut on the torch body as far as it will go.
Ensure that the union nut is tightened as far as it will go.
If a gas-cooled welding torch is used with a plastic inner liner including a
bronze inner liner insert instead of a steel inner liner, the performance data
specified in the technical data of the welding torch is reduced by 30%.
To operate gas-cooled welding torches at maximum power, replace the 40
mm (1.575 in.) inner liner insert with the 320 mm (12.598 in.) inner liner in-
sert.
The torch body is in the 0° position
when the dowel pin (1) on the ho-
sepack engages in the locating hole (2)
in the torch body.
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