开云体育

The lock-ring retainer fell out of the Plate adjustment control in an FT-101ZD, so the vernier didn’t turn the tuning capacitor. ?Rather than just reinstall the locking ring, I decided to take it apart, clean it and inspect, re-grease, and reassemble, knowing that some very very sticky grease was needed. ?I used Green Grease, which is quite sticky, but not as sticky as the original. ?It now turns much easier than those with original grease from Yaesu. ?The vernier appears to work now, kinda. ?It slips a little sometimes. ?So can anybody tell me the name of the original grease that was used and where to obtain it?

?

Thank you,

Michael Smith, N4KZO

As I have seen no responses, I expect that someone reading this groups.io knows the type and a source of obtaining the original very sticky grease used by Yaesu. ?Also, I edited my posting with further information about a fully operational and successful outcome, but I don’t see that edit.

?

Michael Smith, N4KZO

I’ve never had much luck in restoring those worn Jackson Ball Drive units.?
easy to disassemble and reassemble but still choppy even lubed or dry.?
Try using a good lens to see if there are tiny divets in channel ground into the shaft. That is the cause of most bad units.?

It’s working great now. ?I learned that the locking ring must be held in place while turning the input drive shaft to allow the excess grease to escape around the output shaft; the grease pressure then levels inside with consistent smooth operation. ?I packed all cavities full with grease as it was reassembled. ?Yes, it was visually inspected thoroughly; no pitting. ?The only difference is that the dampening is not the same in not using the original very very sticky grease. ?Less torque is required to turn reduction drive. ?The original grease was so sticky it makes me think of liquified bow rosin. ?I’ll keep listening and looking for this very very sticky grease. ?Hmm, I just had a thought about brass musical instruments that use a slide grease that is sticky on their tuning slides; that may be it.

?

73,

Michael Smith, N4KZO