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5 OPERATION
5.12
Roller pressure
The roller pressure should be adjusted separately on each tensioner unit, depending on the material
and diameter of the wire used.
Start by making sure that the wire moves smoothly through the wire guide. Then set the pressure of
the wire feeder's pressure rollers. It is important that the pressure is not too high.
Figure A
To check that the feed pressure is set correctly, you can feed out the wire against an insulated object,
e.g. a piece of wood.
When you hold the welding torch approx. (5 mm) from the piece of wood (figure A) the feed rollers
should slip.
If you hold the welding torch approx. (50 mm) from the piece of wood, the wire should feed out and
bend (figure B).
The table below serves as a guideline showing approximate roller pressure settings for standard
conditions with correct bobbin brake force. If the torch cables are long, dirty or worn, the pressure
setting may need to be increased. Always check the roller pressure setting on a case-by-case basis by
feeding out the wire against an insulated object as described above. A table showing approximate
settings can also be found on the inside of the left door of the wire feeder.
Wire diameter (in.)
Wire material
Fe, Ss Tensioner unit 1
Cored Tensioner unit 1
Al
0463 786 001
.023
(mm)
0.6
Tensioner unit 2
Tensioner unit 2
Tensioner unit 1
Tensioner unit 2
- 23 -
Figure B
.030
.040
.045
.052
0.8
1.0
1.2
1.4
Pressure setting
2.5
3–3.5
1–1.5
2–3
1/16
.070
5/64
3/32
1.6
1.8
2.0
2.4
2
2.5–3
© ESAB AB 2023
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