Hi and welcome to JustAnswer,
Im so sorry that no one else has responded to you.
Apologies for my delay in replying, I only just came online and saw your question. Are you still looking for help with this?
Thanks for your response.
If you turn your hand wheel but the needle doesn't move you possibly have problem on needle bar mechanism or upper drive shaft. Please refer to the image I send below.
Or you can try to open the face plate, get aerosol lubricant (for sewing machine) do not use wd40. Then spray to the needle bar mechanism specially on the connecting area (red circle on image below). Then continue to turn the hand wheel or try to step on the pedal after a few minutes.
Hope this information will be helpful.
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