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How to adjust the bobbin tension. - Singer 4423 Sewing Machine

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According to the manual, you should not need to adjust the bobbin tension (and I located other sites which stated the bobbin tension cannot be adjusted on this machine). Apparently, all the tension adjustment is accomplished through the upper thread::
"EN Thread Tension Upper thread tension Basic thread tension setting: "4". (1) To increase the tension, turn the dial to the next number up. To reduce the tension, turn the dial to the next number down. A. Normal thread tension for straight stitch sewing. B. Thread tension too loose for straight stitch sewing. Turn dial to higher number. C. Thread tension too tight for straight stitch sewing. Turn dial to lower number. D. Normal thread tension for zig zag and decorative sewing. Correct thread tension is when a small amount of the upper thread appears on the bottom side of fabric. Lower thread tension The bobbin tension has been set correctly at the factory, so you do not need to adjust it. Please note: - Proper tension setting is important for strong seams. - There is no single tension setting appropriate for all stitch functions, thread or fabric. - A balanced tension (identical stitches both top and bottom) is usually only desirable for straight stitch construction sewing. - 90% of all sewing will be between "3" and "5". - For zig zag and decorative sewing stitch functions, thread tension should generally be less than for straight stitch sewing. - For all decorative sewing you will always obtain a nicer stitch and less fabric puckering when the upper thread appears on the bottom side of your fabric. 1 A B C 22 D"

Doing further research, I found this statement on a machine review site:
"After reading reviews online from where I've bought my drop-in bobbin machines, I think many of the negative reviews are due to the bobbin thread coming up without laying across the bobbin. It can cause the stitches to look very sloppy and no amount of tension adjusting can fix the stitches."

There are several machine review sites wherein 4423 owners stated their disappointment in the 4423's performance. Some said the machine failed almost immediately and others said the machines developed problems when sewing heavy fabric.

Posted on Apr 26, 2015

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HI, Had this problem myself until I adjusted the bobbin tension. There is a yellow bit of paint on the bobbin case. There is a you tube video and its pretty easy to do. I looked at the guide first and according to the guide I shouldnt have had to adjust this. No matter how I adjusted the upper tension the thread was looping at the top of my project. So i adjusted the tension. The only time it seemed I was having any luck was when the thread tension to 0 and then the lower thread was loose and wonky. I was about to send the machine back. However, I I slightly adjusted the bobbin, which was fiddly to say the least and I had to test and then redo but its working now

Posted on Aug 06, 2017

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Posted on Jan 02, 2017

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2 Answers

How do I set the bobbin tension


How to change the tension on a sewing machine?
Adjust your top tension if it's too tight. To decrease your top tension if it is too tight, turn your knob so the numbers are decreasing. Try ½ to 1 number lower, then test the stitches on a piece of scrap fabric. Continue until it looks even on both sides and you can no longer see the bottom thread on the top.

How to Adjust the Tension on a Sewing Machine: 13 Steps

www.wikihow.com/Adjust-the-Tension-on-a-Sewing-Machine Search for: How to change the tension on a sewing machine?
https://www.google.co.uk/webhp?sourceid=chrome-instant&rlz=1C1CHBD_en-GBGB719GB719&ion=1&espv=2&ie=UTF-8#q=Sewing+Machines+How+do+I+set+the+bobbin+tension ..try this link

Dec 04, 2016 | Sewing Machines

2 Answers

How do I adjust tension on the bobbin?


First of all, be absolutely certain that the problems being experienced are not a result of the upper thread tension, ie threading when the presser foot is not in the up position, thread pathway is correct, a brand-new needle compatible with the thread and fabric, etc.

Before making any adjustments to the bobbin tension, be sure to mark the bobbin case where the skrew slot sets with permanent marker or a small drop of nail polish. This will allow you to reset it to original should your adjustments not be successful. And, make only minor movements of the tension adjustment, ie 1/8th of a turn, then re-test, before making another adjustment. Tiny incremental changes will make a huge difference in the outcome.

Understanding Bobbin Tension

Bobbin Tension How and Why Tension is Adjusted

https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=6&ved=0ahUKEwiAs_S73ZnMAhUpnoMKHXQjA7cQFgg4MAU&url=http%3A%2F%2Fwww.ca.uky.edu%2FHES%2Ffcs%2FFACTSHTS%2FCT-MMB-213.pdf&usg=AFQjCNE4QlGk1Fvt8K2UGCRCfzMpGS-A2Q&cad=rja

Understanding Thread Tension Threads

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Apr 18, 2016 | Sewing Machines

1 Answer

The bobbin thread shows to the front. Does the bobbin or thread tension need adjusted


Generally, tension adjustments are made using the upper thread tension. Most likely the upper tension is set too tight and is pulling the bobbin thread up. Loosen the upper tension and try again. Tension is accurate when the upper thread and bobbin thread meet in the middle of the fabric. Whenever fabric, thread & needle are changed, there may be a need to adjust the upper tension.

HINT: When threading the upper thread, make sure the presser foot is RAISED during threading to make sure the upper tension disks are open and the thread seats properly.

Bobbin tension is only adjusted when the tensions are way out of whack. Only slight turns of the bobbin case tension screw are made in graduated movements and testing occurs after each adjustment.

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Jan 20, 2016 | Sewing Machines

1 Answer

How do I set bobbin tension?


Generally bobbin tension is the last thing to try to adjust on your machine. Most sewists adjust the bobbin tension ONLY if they are using very lightweight or very heavyweight thread in the bobbin. Most sewists will advise to make all possible adjustments to the top tension before tackling the bobbin tension to resolve issues.

Try searching YouTube videos or this may be helpful:

Bobbin Tension How and Why Tension is Adjusted

Understanding Bobbin Tension

Setting the Bobbin Tension on your sewing machine

Liz Kettle adjusting your bobbin case tension 1 wmv

How to fix Tension Don Panic

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Sep 27, 2015 | Janome Memory Craft 3000

2 Answers

How do I adjust the tension on the bobbin. My stitches are too loose.


Your objective is to have the top and bobbin tension equal. Once you have set the bobbin tension you will adjust the top tension until the knot is in the center of the fabric. A good starting point for the top tension is four.
I've attached a guide to help you set your tension.
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25726431-zby1ycmzruqr3f4ib2ahu5rp-3-2.jpg

Jun 02, 2015 | Sewing Machines

1 Answer

I have a EURO -PRO model 9110. The bobbin tension is not correct.The top thread can be easily pulled out after sewing.How do I adjust the bobbin tension?


Hi janna

have you tried adjusting the top tension first?
if you have a drop in bobbin then it has to be adjusted at a sewing shop
the bobbin case you take out of the machine you can, using a small screw driver,,here's how
lower bobbin tension--
to test the bobbin tension,
remove the bobbin case & bobbin,,
hold it by suspending it by the thread,,
**** it once or twice,,
if the tension is correct, the thread will unwind by about an inch or two
if the tension is too tight, it does not unwind at all
if the tension is too loose, it will drop too much
to adjust turn small screw on the side of the bobbin
to the left is tighten
to the right is loosen

Sep 21, 2011 | Euro-Pro 9120 Computerized Sewing Machine

3 Answers

I need to know how to adjust the bobbin tension on my euro-prox sewing machine.


There is a tiny screw on the side of the bobbin case.

Mark the **** (in the screw head) position on the bobbin case with tiny dab of nail polish so you will know where the original setting was.

Left/loose and right/tight.

If you are adjusting because the bottom stitching is loose/loopy, first try threading the machine with the presser foot up to see if this solves the problem.

May 01, 2010 | Euro-Pro Shark 60 - 384

2 Answers

Difficulty adjusting tension to avoid bobbin looping


it sounds like your bobbin tension is too tight. to adjust bobbin tension, remove bobbin case (remove needle plate first) and adjust bobbin tension screw on side of case until bobbin thread has a slight resistance as you pull it through the bobbin case.

this will be trial and error until you get best result. you should always try and match top and bottom threads. if the top thread is quite thick you may have continue to increase needle thread tension until balanced.

scott

Jul 26, 2009 | Brother CS6000i Computerized Sewing...

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