What is the part number for the spool hub on the Multimatic 255 and what size spool does it support?
The spool hub part number is 279587 and it is designated as a 12-inch hub. It is part of the Center Baffle Assembly along with a tensioner knob, brake washer, and support shaft components. (Page 3)
From the official Miller Multimatic 255 Multi-Process Welder manual, page 3
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