My moms machine, the belt seems to be slipping. It will sew if you help it by turning the wheel. Will not wind bobbin. How do you adjust belt or replace?

Did you wind a bobbin and forget to deactivate the bobbin winder?

Check if the machine is in the bobbin winding mode. To wind the bobbin, the bobbin spindle has to be moved to the right. (The hand wheel will not turn if the bobbin spindle is in this position.) If it is, move the spindle to the left.

If the hand wheel turns, then check for a thread jam. Remove the top thread and take out the bobbin case. Gently turn the hand wheel forward and backwards until the thread comes free of the hook in the bobbin race. Follow this by cleaning any lint from the bobbin race of the sewing machine.

The last possibility is that the belt has failed. This belt transfers the energy from the motor to the needle bar. One source of the belt is http://www.sewingpartsonline.com/motor-belt-singer-007158xxl5.aspx . You can find YouTube videos on changing the belt. There are other parts that transfer the forces form the belt to the needle bar. However, I suggest you find a good sewing machine mechanic if any of these parts fail.

The manual has good pictures of the bobbin spindle on page 11 (page 18 of the PDF). Singer has the manual on their support page: http://www.singerco.com/support/instruction-manuals . The direct link to the manual is http://www.singerco.com/uploads/download/e06cb85928ace9753f1a7124f4a2df6168ffecf0.pdf .

I hope this helps.

Cindy Wells

Has the clutch been disengaged to wind the bobbin? Pulling straight out on the handwheel on some machines will stop the needle from moving so that a bobbin can be attached and wound. If this is the case you simply push it straight back in. Also, on a computerized or electronic machine if the bobbin winding post is pushed right, the clutch will disengage. --Push it all the way left when you are done winding the bobbin to re-engage the clutch. If the problem is internal, like a slipped belt, you will need to have someone open up the machine to repair it. Hope you get it going again!

Move the bobbin winder to LEFT. Sounds to me like you didn't re-set after winding a bobbin.
Hope this helps!
Jimmy

If the needle is not going up and down the belt may be slipping or even come off, disengage the stop motion and see if the balance wheel turns as if to wind a bobbin, if it does then something must be jammed in the bobbin case area.

To wind a bobbin put the cotton reel on the top pin, take the thread to the left and round the little wheel and back to the bobbin that should be on the winder, wind the thread round a few times to take a grip, release the stop motion in the balance wheel, turn the winder button so the winder moves to the balance wheel and press on the foot control slowly.
When you put the bobbin in the bobbin case make sure it turns anti clockwise.

hi there;
well try to rotate hand wheel center holder clockwise while hold grift the handwheel not to move to engage the clutch,because ther is clutch that holding the movement of the needle and the bobbins case.if still nothing change at all,open a cover motor assembly chech the belt tension if still engage on pulley,maybe slip pulley is occuring when motor run,if belt is slip to pulley replace belt,but if ok upon clutch adjustment ignore replacement.

regarding bobbin and threading you can watch on youtube.doing this,on internet explorer,type www.youtube.com
then on you tube search type"sewing machine"then click search
ther are high ligthed show for bobbins winding and treading just click it enjoy watching while you learn,have a nice viewing regards
don't forget to rate me,thank's

First, give Mom all your Reese's Peanut Butter Cups.
Then, be sure the bobbin-winding function is not still engaged. Check it again, since on some machines, the mechanism has to be backed off until you hear a click, or until a light turns off. If that's done, check the tension on your top thread, since that's easier, then on your bobbin thread.
If the bobbin didn't get wound evenly (Like if you're hurrying) that will mess up its ability to let the thread flow out, so see if the thread on the bobbin looks as smooth as a new spool of thread.
I hope you got your costume together & had fun aside for that frustration. :^)

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check out this. good luck. thanks.