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Question edited for clarity and all the typos.
Question moved from Televisions to make model category.
The whirling noise is the motor. It may be that the drive belt has broken?
When was the last time it was professionally cleaned, serviced and timed? With moderate use, they need doing every 2 to 3 years. The inside workings of sewing machines are very tough and seldom 'break'.
There are a number of things that could cause this.
Needle installed with flat in the wrong direction.
Excessive thread tension,top or bottom.
Lack of lubrication. If the machine can do anything more than a straight stitch the mechanism can gum up and not move the needle correctly.
Here is a link to threading directions. Necchi 3537 Sewing Machine Threading Diagram
Needle breaks
1.the needle is damaged
2.the needle is not correctly inserted
3.wrong size needle for the fabric
4.the wrong foot is attached
5.the needle clamp screw is loose
6. Top tension is too tight
7. Machine could be out of time
There could be a simple solution or one that needs professional assistance, try inserting a new needle with making sure that the flat side is facing away from you. Also, try a light sanding in the hole that the thread comes through. Try rethreading with different thread and making sure that you leave enough of a tail on the bobbin thread. If, this does not work you may need to have the timing checked. good luck
Hello jone...... please rewrite your question one more time starting fresh with the brand, model number and exactly what is wrong with your machine. We truly do want to help you but we need all of that info. in one place. Thanks. Joe
The most common reason is the needle not inserted correctly (backwards), other causes can be burrs on the needle plate opening or burrs on the parts in the bobbin area.
Normally this will be caused by lint/thread caught in the bobbin/hook area.Remove the bobbin case, push the two fingers (about 4 and 8 oclock positions) that hold the race cover on, and then remove the hook. If it will turn now then your good. Clean the area out, put a couple drops of oil on the hook and reassemble it.
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