01-13-2023, 06:08 PM
The tuner from my 620B turned out great after being ultrasonically cleaned.
I forgot to remove and disassemble the little "gearbox" assy. for the coarse and fine tuning. And when I removed it i saw that the cleaner didn't reach inside, and there was a very tarry goo in there.
After cleaning it I used white grease and reassembled it, but it doesn't turn smoothly and the fine tuning gear stops and starts. I may have reassembled it wrong. Its a strange mechanism and I don't understand the purpose for the spring and smaller ball. Anyone have experience with this?
I forgot to remove and disassemble the little "gearbox" assy. for the coarse and fine tuning. And when I removed it i saw that the cleaner didn't reach inside, and there was a very tarry goo in there.
After cleaning it I used white grease and reassembled it, but it doesn't turn smoothly and the fine tuning gear stops and starts. I may have reassembled it wrong. Its a strange mechanism and I don't understand the purpose for the spring and smaller ball. Anyone have experience with this?
