I have a Borletti 1102 Sewing machine.Recently whilst in use, it laboured a bit then stopped.I opened the pedal and fiddles with the 'contacts, also oiled some of the points on the machine and it started to work again for some 15 mins then stopped again.I feel the problem lies in the pedal but I cud be wrong. When I do press the pedal after 'adjusting the contacts', I need to push/coax the wheel. It works for abit then stops. Help!

SOURCE: The fabric doesn't move forward.

We need to do some examining. Remove the foot. Put the stitch length dial at the longest stitch. Turn the wheel and see if the feed dogs move about 1/4 inch. Also check to see that they rise just slightly above the needle plate. If it does these two things it will work. If the teeth don't rise above the plate, remove the needle plate and clean the lint out from between the rows of teeth. If you find a lot of tightly packed lint there this will solve your problem. Reinstall the needle plate and foot. If the feed dogs don't move about 1/4 inch, you probably have a problem which is going to require the services of a technician.
sewman7

SOURCE: Wrong type of stitch/tension not working

Found a solution to my own problem.... hope this helps someone else. Make SURE the bobbin case is seated correctly! (follow the instructions carefully). Don't put the cover back on right away after you put the bobbin case in. First check and make sure it doesn't move when you turn the hand wheel.
Also, when threading the bobbin make sure the thread passes down through the tension adjusting spring of the bobbin case.

SOURCE: how to adjust the thread

Here is the user manual from which I will quote
ftp://ftp.brother.ca/ENGLISH/SEWINGMACHINE/XR31-UG.pdf
Page 19 has how to adjust the tension of the thread
There should be dial to which you can turn to adjust up or down your tension , use a piece of scrap fabric to ensure it is set at the right tension that you need ..
The upper thread tenison wheel is located on the left side of the machine above the needle ( top/front of machine shown on their diagram of the machine as #5 )

SOURCE: sewing machine Brother Cs-6000i don't work

let me know too, mine won't turn on, worked just fine yesterday, Suz

SOURCE: I own a Sears Kenmore machine that began sewing backwards

Make sure that the reverse button isn't stuck inside. if all else fails, go back to sears and have them look at it.