Installing and changing wire
Always ensure that the feed rolls are suitable for the filler wire (diameter and material) in question. For more information, refer to Wire feeder consumables.
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Install the welding gun to the Master M device before installing the wire spool. |
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When changing the wire spool, remove the remaining filler wire from the welding gun and wire feed mechanism before removing the wire spool. |
To remove the wire spool:
| 1. | Open the wire feed cabinet hatch. |
| 2. | Loosen and remove the spool fastener and remove the wire spool. |
To install a new wire spool:
| 1. | Insert the wire spool onto the spool hub. Secure the wire spool in place by inserting and tightening the spool fastener. |
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Ensure that the wire spool is facing the right direction, the filler wire running from the bottom of the spool to the feed rolls. |
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When installed, the pin next to the wire spool hub in the wire feeder must align and go into the hole in the spool or spool adapter.
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| 2. | If needed, adjust the spool brake by turning the spool brake tightening knob in the center of the spool hub. |
To install the filler wire:
| 1. | Release the filler wire end from the spool and cut off any deformed section so that the end is straight. |
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Ensure that the filler wire does not spill from the spool when it is released. |
| 2. | File the tip of the filler wire smooth. |
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Sharp edges on the filler wire tip may damage the wire liner. |
| 3. | Release the pressure arms to move the feed rolls apart. |
| 4. | Guide the filler wire through the inlet guide tube (a), middle guide tube (b) and into the outlet guide tube (c), which feeds the filler wire to the welding gun. |
| 5. | Push the filler wire by hand into the gun so that the wire reaches the wire liner. |
| 6. | Close the pressure arms so that the filler wire is locked between the feed rolls. |
| 7. | Adjust the pressure of the feed rolls with the pressure adjustment wheels. The pressure is the same for both feed roll pairs. |
The graduated scales on the pressure handle indicate the pressure applied to the feed rolls. Adjust the pressure of the feed rolls according to the table below.
| Filler wire material | Feed roll profile* | Filler wire diameter (mm) | Adjustment (x100N) |
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| Fe/Ss solid | V-groove |
0.8-1.0 | 1.5-2.0 |
| ≥ 1.2 | 2.0−2.5 | ||
| MC/FC | V-groove, knurled |
≥ 1.2 | 1.0−2.0 |
| Al | U-groove |
1.0 | 0.5−1.0 |
| 1.2 | 1.0−1.5 |
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Excessive pressure flattens the filler wire and may damage coated or cored filler wires. Excessive pressure also unnecessarily wears the feed rolls and increases gearbox load. |
| 8. | Drive the filler wire into the welding gun by pressing the wire inch button (*), by using the wire inch function in the system settings or by long pressing the left control knob button. Stop when the wire reaches the welding gun's contact tip. |
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Watch out for the wire when it reaches the contact tip and exits the gun. |
| 9. | Before welding, ensure that the welding parameters and settings conform to your welding setup. |
* Feed roll profiles and corresponding symbols
| Feed roll profile | Symbol |
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| V-groove |
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| V-groove, knurled |
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| U-groove |
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