DanishMan Report post Posted June 22, 2024 Dear Friends I am working on a PFAFF 331 9B. I am puzzled about the maximum stitch length. It is sewing with about 3 mm stiches. I was expecting 4 mm stitches. Anyone here with knowledge of the PFAFF 331 9B? Kind regards Danishman Quote Share this post Link to post Share on other sites
shoepatcher Report post Posted June 24, 2024 pics of the machine please. glenn Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted June 24, 2024 On 6/22/2024 at 3:48 PM, DanishMan said: Dear Friends I am working on a PFAFF 331 9B. I am puzzled about the maximum stitch length. It is sewing with about 3 mm stiches. I was expecting 4 mm stitches. Anyone here with knowledge of the PFAFF 331 9B? Kind regards Danishman The 331 is similar to a 335 in the fact the feed dog doesn't lift the material off of the needle plate when it goes back.This creates alot of drag esp in sticky materials like vinyl & leather & will cause the length to shorten.You could have some worn feed parts,lift the foot up & push the needlebar front to back & try the feed dog too to see if there's any play. 9 hours ago, shoepatcher said: pics of the machine please. glenn The 331 a needlefeed & looks like the 335. Quote Share this post Link to post Share on other sites
