Uploaded January 2020 | Updated September 2026, 1 day ago
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All about the Pattern Disc/Cam Stack Sytems on the Singer Model 401A Slant-O-Matic. A how to do it yourself tutorial for cleaning, adjust, and using the dials on the 401A. I have made about 80 videos for the other parts of the 401A, 403A and 404 Singer models, but this series will cover the tricky, complicated lifters, followers, dual dials and cam stack of the 401A which Singer called "the Greatest Machine ever Built.
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The lost ending of this video is reloaded here: youtu.be/-loox-fKd7c
All about the Pattern Disc/Cam Stack Sytems on the Singer Model 401A Slant-O-Matic. A how to do it yourself tutorial for cleaning, adjust, and using the dials on the 401A. I have made about 80 videos for the other parts of the 401A, 403A and 404 Singer models, but this series will cover the tricky, complicated lifters, followers, dual dials and cam stack of the 401A which Singer called "the Greatest Machine ever Built.
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