How do I adjust the drive roll pressure on my Spoolmatic gun/feeder?
To adjust, turn off welding power source and disconnect input power. Then loosen setscrews to remove drive roll from motor shaft and install with desired groove down. Align with bearing groove and tighten setscrews firmly (See Section 5-3, Page 11).
From the official Miller Spoolmatic 30a manual, page 11
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