Arturomex Report post Posted November 16, 2021 I have a Techsew 4800 machine that's been running very well for me. It's well maintained and well lubricated. Was sewing 92 on the top and 69 on the bottom yesterday when I noticed a sound that I believe is something rubbing on, well, something else and I can't find it. It seems to be happening on the upstroke and doesn't seem to be affecting the quality of the stitch. The sound is not there if I run the machine with the feet lifted and it's not there if I run it with the needle through leather without any thread in it. Opened the side cover and all seems to be OK there. Took the end cap off and can't find any problems with the feed dog. Hook? Any advice on what to look for next would be greatly appreciated. Thanks, Art Quote Share this post Link to post Share on other sites
RockyAussie Report post Posted November 16, 2021 If its not the centre foot lightly rubbing the back foot somewhere it could be just that type of leather. Some leathers I use can be quite squeaky when sewn especially when doubled up. They are normally a little dry to the feel. Try a couple of other leathers and see if that can be ruled out first. Another thing....try dropping your foot pressure back as far as possible and see if that stops it. May be some rubbing from the presser foot spring. IF the presser foot catches a bit when you lift off of the job your doing then that could be it. Quote Share this post Link to post Share on other sites