Members Gia Posted July 6, 2020 Members Report Posted July 6, 2020 Hello! I am new to leather working, and this is my first sewing machine. I have an old Pfaff 335 h3, with which I sewed perfectly for a while - the tension and the stitch were flawless. Suddenly it started to punch holes in the leather without making any stitches or just making them from time to time. My question is: why this happened and what should I do to make it work again? Any help will be much appreciated. I am attaching a video and a photo for a better understanding. Thank you in advance! Gia https://imgur.com/DHCHz5T Quote
Members Constabulary Posted July 6, 2020 Members Report Posted July 6, 2020 Often the problem is just an not correctly adjusted needle bar but hard to tell from the distance. First thing I would do is checking the correct threading and the needle hook timing. Are you sure the needle is insert correctly and using the correct needle system? I guess you have a manual for your machine, right? Quote ~ Keep "OLD CAST IRON" alive - it´s worth it ~ Machines in use: - Singer 111G156 - Singer 307G2 - Singer 29K71 - Singer 212G141 - Singer 45D91 - Singer 132K6 - Singer 108W20 - Singer 51WSV2 - Singer 143W2
Members jimi Posted July 6, 2020 Members Report Posted July 6, 2020 Hi and welcome, did you change anything or did it just start to not sew?? Quote
Members Constabulary Posted July 6, 2020 Members Report Posted July 6, 2020 (edited) Since I see a white machine I guess it is the current 335 model. Here is a service manual for the current 335 model. It should help you with the settings: Pfaff 335 Service manual.pdf Edited July 6, 2020 by Constabulary Quote ~ Keep "OLD CAST IRON" alive - it´s worth it ~ Machines in use: - Singer 111G156 - Singer 307G2 - Singer 29K71 - Singer 212G141 - Singer 45D91 - Singer 132K6 - Singer 108W20 - Singer 51WSV2 - Singer 143W2
Members Constabulary Posted July 6, 2020 Members Report Posted July 6, 2020 (edited) settings should be the same I think. Are you sure you interst the needle correctly? Edited July 6, 2020 by Constabulary Quote ~ Keep "OLD CAST IRON" alive - it´s worth it ~ Machines in use: - Singer 111G156 - Singer 307G2 - Singer 29K71 - Singer 212G141 - Singer 45D91 - Singer 132K6 - Singer 108W20 - Singer 51WSV2 - Singer 143W2
Members Gia Posted July 6, 2020 Author Members Report Posted July 6, 2020 (edited) 49 minutes ago, Constabulary said: Often the problem is just an not correctly adjusted needle bar but hard to tell from the distance. First thing I would do is checking the correct threading and the needle hook timing. Are you sure the needle is insert correctly and using the correct needle system? I guess you have a manual for your machine, right? Everything is done right, it worked perfectly until yesterday. I use these needles https://imgur.com/4YbcAnU with 20/3 thread. Sometimes it does a couple of stitches, and then none. 6 minutes ago, Constabulary said: Since I see a white machine I guess it is the current 335 model. Here is a service manual for the current 335 model. It should help you with the settings: Pfaff 335 Service manual.pdf It is the old model, from the 60s I guess. It was painted for a better look. Edited July 6, 2020 by Gia Quote
Members Gia Posted July 6, 2020 Author Members Report Posted July 6, 2020 55 minutes ago, jimi said: Hi and welcome, did you change anything or did it just start to not sew?? I didn't change anything, it just started to not sew. Quote
Members Gia Posted July 6, 2020 Author Members Report Posted July 6, 2020 10 minutes ago, Constabulary said: settings should be the same I think. Are you sure you interst the needle correctly? Yes, it is inserted correctly. I did sew a lot without any problems before this happened. Quote
Members Gia Posted July 6, 2020 Author Members Report Posted July 6, 2020 Is there any change to give me any guides to check if the timing works properly? Quote
Members Constabulary Posted July 6, 2020 Members Report Posted July 6, 2020 (edited) Sometimes needle bar rise a little bit so w/o sitting in front of the machine I would guess you have to lower the NB a little bit. As I said before I would check the needle hook timing. Procedure is in the manual I have liked above. Edited July 6, 2020 by Constabulary Quote ~ Keep "OLD CAST IRON" alive - it´s worth it ~ Machines in use: - Singer 111G156 - Singer 307G2 - Singer 29K71 - Singer 212G141 - Singer 45D91 - Singer 132K6 - Singer 108W20 - Singer 51WSV2 - Singer 143W2
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