Ancient Sunbeam Mixmaster only runs at full speed (speed control not fuctional)
I wonder what's wrong? It's a wonderful antique. Looks not too different to this:
Sunbeam Mixmaster Stand Mixer : Target
It has a variable speed control. All of a sudden it no longer responds to the speed dial but runs top speed constantly.
What is wrong and how might I go about fixing it? I can open it up, check bits and pieces even make changes am quite adept, but not particularly savvy on diagnosing electrical failures like this on my own either... and a bit puzzled about which part to suspect and whether I can repair it at all.
Any tips would be appreciated.
Ancient Sunbeam Mixmaster only runs at full (speed contol not functional)
What I had mentioned was that the points are not laying exactly flat on one another, they are staggered a little due to the burr on the inside contact.
I didn't see any Bakelite insulator on the governor shaft, if this is where it goes.
I cleaned the contacts with a flex stone, and then blew them clean with CRC contact cleaner.
It runs a little smother at low speeds, but still kind of hesitates at low speeds.
It isn't even a hesitation,it's an on-off thing in the low speeds-- it doesn't run smooth till I get up around 4th-5th speed, than it's OK.
But I can't tell the difference between 5th speed & 10th.
On the way back down either--it doesn't slow down till I get to 4th or lower.