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Forum > Sergers, Coverstitch and Blindhemmers > Pfaff 4874 top cover stitch ( Moderated by CarolynGM, Deepika)

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Pfaff 4874 top cover stitch
Serger question
tigger
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tigger  Friend of PR
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Armed Forces (AE) USA
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Date: 6/8/06 8:36 AM

Hi everyone!

I recently bought a Pfaff 4874 coverstitch machine and am so far very pleased with it. I've found it relatively easy to thread and have been playing around with cover hem stitch and cover stitch so far with pretty good results.

The one question I didn't know if anyone had any experience on is an issue with the top cover stitch. I'm not having any problems with the stitch as such but do find that the top cover lock holders (the blue one is in with the yellow one free) do seem to be quite noisy as you stitch. I didn't know if this was a normal issue -as the rest of the machine is so quiet - but wanted to check with anyone who might know first.

I will put a review of this machine up soon but wanted to play with it throughly to give it a fair review.

thanks

Tracey

sleepyc
sleepyc
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Date: 6/17/06 7:08 AM

Hi There!
This is my first post, as I have been sooo busy reading/sewing/trying not to sound ignorant....
Anyway, just bought the pffaf 4874, and have been trying to do the first program 2 stitch narrow cover hem. The top stitch looks great, but the bottom stitches are all over the place. I have re-threaded 100 times, adjusted my tensions.....Help! I am going to the dealer today, but just thought that I would see if anyone had any advice. Thank you!

rhoda bicycle

rhoda bicycle
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In reply to sleepyc


Date: 6/17/06 7:28 AM

I have an older Pfaff and was never very satisfied with the coverhem. You might try increasing the stitch length, that seems to solve a lot of problems on stand-alone coverstitch machines. And maybe put a mesh sock over the looper cone?

Betakin
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Betakin
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In reply to tigger


Date: 6/17/06 2:47 PM

My serger does coverhems but I am not familiar with coverlock holders. My serger does not have these. Could you please explain what they are and what the two colors blue and yellow signify and why would they make noise? TIA

kmouse
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kmouse
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Missouri USA
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In reply to tigger


Date: 6/17/06 9:30 PM

When doing the top cover stitches, the "threaders" or "hook" attachments that move back and forth in front of the needles do make a racket as you sew. This is normal. You will not be serging 90 miles an hour with these stitches but they are quite pretty.

This machine can be a challenge to thread up, but it is fun to do. Also, I think the Pfaff manual for this serger is about as good as it gets. It's organized with lots of illustrations. It should answer a LOT of questions.

Am I understanding that you are working with the TOP coverstitch (stitch programs 21- ??) and not the traditional cover stitch?
-- Edited on 6/18/06 8:09 AM --

kmouse
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kmouse
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In reply to sleepyc


Date: 6/17/06 9:36 PM

If the bottom tensions are way loose, try to make sure the thread is all the way in the tension disc. When threading, make sure the presser foot is in the UP position. Upon sewing a sample and if you have the loopy bottom, hold the thread in the chain/cover looper (purple) behind and in front of the tension disc slot and slip into the disc, sort of like flossing. If it is out of the tension disc, you will feel it slip into the disc. If you have been fiddling with the tensions a lot, it might be best to turn off / turn on the serger to let it reboot.

MareeAlison
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MareeAlison
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In reply to tigger


Date: 6/18/06 3:57 AM

Tigger - I have the pfaff 4862 and I don't have a problem with the coverstitch. I probably should amend that and say when I first got it, I occasionally did but it was always me. I ended up taking the manual which is very badly written with me to work and I read it in the bus on the way there and back each day for a week. Every day I read something new that I hadn't read the day before. Sounds strange but true. I started to highlight the important bits.

The advice about the tension disks is important, I tend to hold the thread on both sides and see-saw it into place to be sure it's embedded properly. Also when my bottom thread has been a bit off it's been because I hadn't threaded in the right order, so I start out from scratch and do it properly and it always works. When I try to take too many shortcuts, that's when I have trouble. I often think, oh that can't make any difference surely, but it does.

My pfaff does lovely coverstitch, it doesn't balk at going over bulky seams and is fairly non-temperamental. I very rarely if ever have skipped stitches for instance. It's important to use the right needles though.

Stick with it and read and read and read the manual. At the end I was able to point out several mistakes to the dealer, one of which referred to coverstitch and dropping the looper down. IMO it's a lousy manual.

------
Maree - Sydney, Australia

sleepyc
sleepyc
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Date: 7/1/06 7:04 AM

Thank you for the wonderful advice...it was definitely the tension in my looper. Now, another issue. I am having a really hard time with coverstitching over elastic. I have had to take apart several waistbands because of skipped stitches. The dealer doesn't have any advice for me except "don't pull too hard"!! I am working with poly/lycra and it is difficult not to want to stretch the waistband while coverstitching. Does anyone have any secrets on tensions or stitch length? Thank you so much.

sewsally
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sewsally  Friend of PR
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Date: 3/9/07 1:24 PM

You might try a different needle -- one for elastic fabrics. I think its designated SUK for the Schmetz Needles. Or use the other stretch needle.

purplebouquet
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purplebouquet
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In reply to sewsally


Date: 3/13/07 1:32 PM

Quote: sally hoffman
You might try a different needle -- one for elastic fabrics. I think its designated SUK for the Schmetz Needles. Or use the other stretch needle.

My Pfaff dealer told me never to use anything but the designated serger needles, the, what is it, EL something. In particular, he said, the stretch needles don't work with the coverstitch. I've never tried using needles other than what he recommended, so I don't know.

Tigger, have you tried using woolly nylon in the looper?

Claudia
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