buellfire

Thanks Bob! I will check those pieces. My thread guide does seem loose and the thread doesnt stay in there, maybe that is the problem.

I have a Consew 255-rb3 with a family servo motor and box style speed reducer. I sew vinyl for medical upholstery, currently having a problem with reverse while locking the thread. While reversing the thread will start coming apart almost instantly, this happen while starting a run or after forward sewing. I can sew all day going forward but reverse will shred the thread. I am using this thread Bonded nylon v-69 T70. Any help would be appreciated.

I have a Consew 255-rb3 with a family sew servo motor. I had the same problems as most, the motor had no torque at the first or second position but was to fast for me at position 3 or <. I added a 45mm pulley to the motor and a box style speed reducer, problem solved. Brought it all from Toledo, the speed reducer was a simple remove motor bolts and place reducer in place them bolt motor to the reducer. I used a piece of rope to get a belt length and bought that at Autozone.

One last thing merry Christmas everyone! Here’s a picture sewing through 6 layers!

Ok, figured somethings out! First I realized my Bobben spins counterclockwise on a 255RB-3. That fixed the underside rats nest I would get at times. Next with the broken part of the needle removed my needles fit perfectly and do not bind.However I was still getting thread separation between the needle and the thread guide, I realized that the cut out in my needle should be at the 3 o’clock position while looking at the machine I had it in the 9 o’clock position, rotating the needle 180° solved my thread separation problem see attached pictures. The reason I wanted to bring this thread to a close is for future generations that may be struggling with the same thing.I realized that the cut out in my needle should be at the 3 o’clock position while looking at the machine I had it in the 9 o’clock position, rotating the needle 180° solved my thread separation problem see attached pictures. The reason I wanted to bring this thread to a close is for future generations that may be struggling with the same thing.

I was able to remove the broken part of the needle with a dental pic. I have one flat head screw that holds both the needle and last thread guide, should I have two needle set screws?

Thanks Kgg, you have been a huge help! I will work on this over the next day or so and report back. The table is a great work space and fits my basement work shop well. Having the shelves and a cabinet allows me to keep all of my supplies close at hand, I still need to work on organization of the tools. A project for another day.

I believe I found part of my problem, part of my needle is missing and broken inside of the receptor of the needle.

Kgg, The thread and needle that came with the machine, (I bought this lightly used) are not marked. I am sewing vinyl upholstery, usually 2 - 4 layers thick. When I bought the machine it went though 6 layers of my vinyl with no problem. Has anyone used this similar machine on like material? If so what thread and/or needle did you use. I will go down to my work area and try to submit pictures soon. Thanks for any help!

Hello all. First post however I have been lurking for the last month or so. I am a newer sewer and have just moved up from a White 322 and Singer 401A 1950's or 60's home units to a Consew 255rb-3. The Consew has a Family 550w servo motor installed. The problem I am having is with needle and thread. The thread keeps unraveling at the needle. I'm not sure if I have the correct needle or thread, I am sewing vinyl. I would also like to swap the pulleys as I run the machine on the second speed setting, at this setting the foot pedal is like a light switch. Any help would be appreciated. Thanks Shawn