Stich length frozen up and and back stich frozen also on a jc penny 6945 sewing machine

SOURCE: Does anyone know where to find free manuals for old sewing

http://sewing.about.com/od/beginner1/ig/Sewing-Tools/Sewing-Machine-Manuals.htm

check this site out

SOURCE: I am in need of a repair manual and an operators

Try www.sewing-machine-manuals.com and click on relics but don't be put off by the word relics

SOURCE: jc penny stitchs problem

First Clean the upper thread path with unwaxed dental floss or some sturdy thin fabric like light weight denim. Get in between those tension discs and floss away. Then make sure you are threading the machine properly with the lever in the UP position and have a proper sized needle. (not all needles are alike) Make sure the needles you are using are not damaged or bent.

Go ahead and clean in and around the bobbin area. Make sure your bobbin is going in the correct direction in the bobbin case. (yes it makes a difference)

Do a test seam. Note any improvements... If you have loops on bottom... tighten the top tension. Loops on top.. tighten the bobbin case tension (look for tiny screw)

Do a test seam. Keep working the tensions until you get a balance stitch. Be patient... this sometimes takes a bit of time to get it right. Work mostly with the top tension if you can.

To determine if it is a timing issue, take off foot, throat plate and bobbin plate so you can really see. Use the hand wheel to get the needle to the lowest position. Note where the shuttle hook is... ideally it should be just about to pass the needle scarf at this point. If it is more than just a few millimeters away, it's out of time.

I can't help with with a manual for a JCP machine not sure where once could be found... would need more than just "JC Penney sewing machine to find one anyway... need model number."

SOURCE: How to change stitch length on j c penny kenmore model 6945

Kenmore is a "Sears" brand.

Try your search on the Sears/Kenmore parts area. Or call the kenmore hotline. (usually the stitch length is marked from 0-6 or so.) Depending on the year of the machine... it could be near the reverse button.

SOURCE: I need a manual for a free arm model 6911 sewing machine

Google manuals on line or contact makers