Hi, it sounds like your turntable is in need of a good servicing. The grease used to lubricate the mechanism has dried up causing this issue. As you can see from my picture there is not a lot to this mechanism so it's very easy to service. You will need to remove the parts where the red arrows point to and clean out all the dried up grease with alcohol and a rag. Then lubricate the areas lightly with fresh grease. I like to use Super lube grease on these mechanisms it will make it work much smoother. The only to areas that DO NOT get grease are the spindle and the silver trip pawls on the white main cam wheel. The spindle will need to disassembled,cleaned and a couple of drops of fresh sewing machine oil put into the housing and one on the spindle as you install it back into the housing. Be careful as you disassemble the spindle there is a small ball bearing in the bottom of the spindle housing you don't what to loose it. The silver trip pawls on the cam wheel need to be disassembled and clean with alcohol then just assemble them dry do not lubricate them. I hope this helps.