How can I get the needle moving?

SOURCE: Needle won't move on Bernina 930

If the machines motor is running but the needle isn't going up and down then the baste stitch finger is gummed up and needs to be serviced.  This is a simple fix and it happens all the time on those machines.  Take it to your local Bernina dealer for a standard service.  Also if you really need it in a pinch try pushing up on the needle bar that sometimes will fix the problem but it will still need serviced.

SOURCE: needle jam

stuck the whole machine the needle did not move .needle and wheel handle both are stuck

SOURCE: can't tighten clutch on Kenmore zig zag sewing machine.

The clutch has fallen off the shaft. Remove the very small screw in the clutch release screw to remove the clutch release. Place the clutch(round thing with ears on it) back on the shaft with the center ears pointing towards the outside. Put the clutch release screw back on. Tighten it to make sure it works
properly. Put the small screw back in the clutch release screw and test it again. If it will not tighten or release properly, remove the clutch ,rotate it180 degrees and try it again.This should solve your problem.
sewman7

SOURCE: singer stylist sewing machine 534 is not stitching

Feed dog drive gear(2) are plastic and are probably stripped. Always replace them in pairs. While you are at it replace both hook drive gears as well. It will run as good as new.

SOURCE: sewing machine needle is stuck and the machine will not move.

you should go with the flow, just take a deep breath hayete w byemshe el hal