Installing feed rolls (R500 WF EUR/EUR+ / RA50 4R)

Always ensure that the feed rolls are suitable for the filler wire (diameter and material) in question. Select the wire feed rolls according to the tables here: Wire feeder consumables.

1. Release the pressure handles on the wire feed mechanism.

2. Open the pressure roll locking arms.

3. Detach the pressure roll mounting pins and drive roll mounting caps.
4. Install the drive rolls. Align the cut on the drive rolls' bottom with the pin on the drive shaft.

5. Attach the drive roll mounting caps.

6. Install the pressure rolls and mounting pins (there are no alignment cuts on the bottom of the pressure rolls).

7. Continue to installing the filler wire (refer to Installing wire (R500 WF EUR/EUR+)) or close the locking arms and pressure handles on the feed rolls.