answersLogoWhite

0


Best Answer

The purpose of the check spring is to maintain tension on the thread as the thread take up arm returns to the top of the stroke pulling the thread back out of the cloth.

The take-up arm follows the needle. As the needle leaves the cloth, the friction between the thread and the cloth forms a loop that the hook inside the machine catches, pulls around the lower/bobbin thread forming the locked stitch. As the take up arm returns to the top of the stroke the thread between the tensioner and the take up arm becomes slack. The check spring pulls on this slack to keep the thread taut.

Proper stitches can not be formed if the check spring is not set with sufficient "snap-back" or tension on the spring. Setting the "snap-back" is by feel. Adjust it from loose to tighter to get good stitches. It is a three way balance between the upper thread tensioner, the check spring and the bobbin tension.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How does a check spring on sewing machine work?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Is the opening in a sewing machine table a universal size that will work with all sewing machines?

The opening in a sewing machine table is normally adjustble to accomodate different sies of machines. You should always check the dimesions before ordering when possible.


What sewing machine is best for taking in jeans?

The Yamata FY812 Heavy Duty Sewing Machine will work on denum.


What sewing machine is best for stitching coats?

Janome 11558 Heavy-duty Sewing Machine by BRADY will work.


Does the sewing machine also work for knitting?

No.


When was the first practical sewing machine built?

the first practical sewing machine is credited to the work of Englishman Thomas Saint in 1790


Did inventing the sewing machine increase work in factories?

Yes


Why was the sewing machine invented in 1844?

Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. Since the invention of the first working sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790, the sewing machine has vastly improved the efficiency and productivity of fabric and clothing industries.-Wikipedia


Where did Elias Howe invent the sewing machine?

A sewing machine is a textile machine used to stitch fabric, cards and other material together with thread. Sewing machines were invented during the first Industrial Revolution to decrease the amount of manual sewing work performed in clothing companies. Since the invention of the first working sewing machine, generally considered to have been the work of Englishman Thomas Saint in 1790,[1] the sewing machine has vastly improved the efficiency and productivity of fabric, clothing and needle industries.Jordan Baird copyed this from wikipediahere is proofSewing machine


Which sewing machines will work with quilted material?

The Shark 80-Stitch Sewing Machine works with quilted material.


Why does sewing machine not work with regular straight line sewing?

the tension is probably wrong. try tightening/losening it.


What to do if your sewing machine won't sew?

Check and see if the bobbin thread is wound/jamming the feeder, if so carefully remove the bobbin & the thread. Clean out any loose thread bits and any thread/fabric dust. If this doesn't work try cleaning and oiling your sewing machine. Once you have done these things rethread your sewing machine, check the bobbin to make sure the thread is on correct (if it is too loose or not on smoothly you may need to reload your bobbin), replace the bobbin in the holder and test on scrap fabric that you are sewing so as to set the tenion of the thread. Always refer to your sewing machines mannal also.


Can you sew thin cardboard on a sewing machine?

It is not advised as the sewing machine is designed to work with fabric, a much softer and suppler material than cardboard. You would risk major damage to your sewing machine and possibly voiding any warranty you may still have on it.