Taurus MIG-250TD, Руководство по эксплуатации, Страница: 19 / 32

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Scale Table
Diameter
Pressure
Drive roll
Ø0.8mm Ø1.0mm Ø1.2mm
V groove roll 3 3 2.5
Pressure scale Knurled roll
-
1.5 2
The actual pressure scale to be used will be determined by the length of the
torch cable, the type of welding torch and welding wire as well as wire-feeding
conditions.
After adjustment of the drive roll, press the tensioner roller. Should the wire slip
when exiting the contact tip, readjust.
！ However:
◆
Take care not to apply excessive pressure which will result in wire being
deformed and coatings being damaged.
◆ Excessive pressure will also result in faster drive-roll wear.
6. Installation of Wire Liner and MIG Torch
In order to deliver a smooth and successful welding job, it is important to confirm
that the wire liner and contact tip is compatible with the welding torch and that
the wire liner is suitable for the diameter and type of wire to be used.
!Attention:
◆
Take care that the wire in the liner is not too tight or too loose. Both will
increase unstable wire feed.
◆ Ensure the MIG torch is securely connected to prevent voltage drop and
over-heating of the wire-feeder and MIG torch.