DanishMan Report post Posted Saturday at 07:48 PM 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 Monday at 02:55 AM pics of the machine please. glenn Quote Share this post Link to post Share on other sites
CowboyBob Report post Posted Monday at 12:29 PM 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
