8mm Forum: GS1200 Rewind Motors Video

This is topic GS1200 Rewind Motors Video in forum 8mm Forum at 8mm Forum.

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Posted by Graham Ritchie (Member # 559) on March 19, 2018, 12:20 AM:

Well here is a short video I made today regarding those motors [Wink]

https://vimeo.com/260705521

Posted by Alan Gouger (Member # 31) on March 19, 2018, 01:29 AM:

Thanks for taking the time to share your technique for cleaning the GS motors. Love the video.

Posted by Graham Ritchie (Member # 559) on March 19, 2018, 01:34 AM:

Thanks Alan

The projector shown was my spare one. Unlike the one I use all the time, this one the motors had never been cleaned.

Posted by Mark Mander (Member # 340) on March 19, 2018, 02:44 AM:

Well done Graham,Great video and a job most can tackle now,Mark

Posted by Antoine Orsero (Member # 41) on March 19, 2018, 05:52 AM:

Hi Graham
Thank you very much for these beautiful videos

Posted by Alan Rik (Member # 73) on March 19, 2018, 07:48 AM:

Agreed! The video is very clear and perfectly explained. I never thought of cleaning the motors ever. Your machine sounds nice and quiet. Thank you for posting.

Posted by Joe Taffis (Member # 4) on March 19, 2018, 08:17 AM:

Excellent! Thanks Graham [Smile]

Posted by Paul Adsett (Member # 25) on March 19, 2018, 10:22 AM:

Superb video by Graham and hopefully this will be added into the forums technical section.
I cleaned both my GS motors just last week using Graham's previously posted written description of this process. Reason for cleaning was electrical noise from both motors, due to arcing within the motors. Both motors were really filthy inside with carbon dust everywhere. After cleaning up everything inside, the electrical noise has pretty well gone.
One thing I found though was that I could not get the brush assembly back onto the rotor shaft without first totally pulling out the rotor. Graham obviously has the nack of doing it with his toothpick technique. Anyway, I had to totally remove the motor, unbolt it from the mounting bracket, and remove the little pinion gear, in order to get the rotor out. Graham's technique, if you have the dexterity to do it, is a much simpler way of doing it.

Posted by Graham Ritchie (Member # 559) on March 19, 2018, 01:06 PM:

Thanks everyone

Just one thing, if you are going to put a small drop of oil on the back of those motors afterwards, be carefull not to put to much, as if any of it makes it way onto the commutator, in time with wear from those carbon brushes the mix of oil and carbon, could act as a mild sort of cutting compound and increase the speed of wear on the commutator and the brushes running on it.

One other thing with those brushes dont use anything metal on them. I just used the stem of cotton buds to compress them against there springs when sliding the end cover back on.

best of luck [Smile]

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