I need to know how to operate this machine - Sewing Machines

Hello, Annelien -

Unless your manually operated sewing machine has switches to realign your sewing machine needle to make zig zag stitching, as is demonstrated in this YouTube video (starting at around 6:30 minutes in the video):
https://www.fearlessmakers.com/manual-sewing-machine-works/
you cannot. Note: The machine in the video is a Necchi brand sewing machine.

Without knowing the model number of your manually operated Singer sewing machine, I cannot try to find operating instructions for it to determine if your machine has zig zag stitching potential.

Best wishes.

Search for:

Make Model manual

Difficult to help without knowing the make & model.

Search for:

Make Model manual

...

sewusa.com has some threading diagrams

or singer has operation manuals,, look for operation manuals & put in the box w2200

singer.com has a free operation manual
in the search engine put singer.com
when it comes up pick instruction manuals
in the search box put w1409

try sewingpartsonline.com for parts

also make sure you get a operation manual with the machine, so you will know how to use it to the full benefit of sewing
don't let someone say you don't need one because you do

You need to find a manual for your machine. Try http://sewingpartsonline.com/ and see if they can help--they have lots of manuals for different machines.

Visit www.janomestuff.com

Just visit www.janomestuff.com

Start with the manual....