My Braun series one electric razor. I prefer it to the series 3 but recently it's shave had become uncomfortable snagging the odd hair and also making a funny buzzing sound so I thought it was time to investigate.
Seems to come down to lost motion in a number of places:
First the cutter was moving slightly on the carrier, using another cutter block cured that.
Then the pivot of the carrier was worn but a canabalised old series 3 unit that had already donated its motor several years ago had an almost identical carrier with no play so that was duly swapped over.
Then I saw that the foil seemed to be loose in the cap and was shifting contributing to more lost motion. I transferred the foil to another cap which was snug fitting. Shows the value of retaining some bits and bobs when fitting new parts that are often poor Chinese copies.
A quick trial confirmed that the smooth cut was back with no snagging. I've had 4 electric razors over the years but this simple foil Braun 1508 has the best shave of all of them.
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History is much like an endless waltz: The three beats of war, peace and revolution continue on forever.
However history will change with my coronation - Mariemaia Khushrenada