Electronics > Repair
Keith Monks Gemini RCM project questions
rich121:
Having trouble posting my first post/thread.
I have tried 2 times in the 'beginners' forum, but after posting, they never showed up?
Anyways, I hope it works this time as I'm very eager to take part in this forum! :)
I have a very nice condition 1970's Keith Monks Gemini (dual platter) record cleaning machine. I have been upgrading a few things on it recently, such as upgrading the vacuum pump to the modern KNF pump that the new Keith Monks machines use. I added a vacuum gauge, replacing all the tubing with high quality Tygon tubing and replaced all the tubing connectors in the jars.
Today I noticed that the thread spooling motor stopped working. I removed the motor/gear box assembly and did not find any obvious loose/broken wiring, but the capacitors for both the arm drive motor/gear box and the thread drive motor/gear box (same size/type motor used for each and both using same capacitors) need to be replaced as they are over 40 years old and could be the problem?
The values are listed on the capacitors but I'm not sure what modern type I should use? Help with that would be much appreciated.
I have included pictures:
rich121:
more pictures
rich121:
more pictures
rich121:
more pictures
rich121:
Waiting for new screen 'elastomers' for my Fluke 87, then I can check to see how close the values are on the capacitors... not sure how accurate my Fluke 87 will be doing this?
Anyone have experience with these motor/gear boxs? I hope I could get them rebuilt/serviced... they should last forever, hardly any load and only 1 RPM.
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