1950's BSR UA-8 Speed Control Fix (BSR grease !)
Posted: Thu Sep 09, 2021 3:46 pm
I'm trading labor with a friend, so I'm getting this
BSR back to function. He's fixing a damaged little
Decca hi-fi cabinet for me.
Even back in the 1950's, BSR used that terrible grease
that hardens like epoxy.
How do I know this ?
The speed selector was totally immobile, and I could
not figure out why.
I reviewed the exploded diagram of the parts and
linkages in the speed selector area over and over.
I finally realized that part 19 called the speed
change pivot was a sleeve that Part 22,
the speed change lever assembly, was supposed
to move up and down on.
This allowed the idler wheel to move to different
speed positions on the stepped turret.
It took butane flame and a small hammer to knock
the pivot free from the lever assembly.
Yes, good old BSR grease on the pivot, hard as epoxy .
Also, there is not a C-clip that retains part 19, it
is a nut. A C-clip would not work at all in this
set up. Sams missed that item.
BSR back to function. He's fixing a damaged little
Decca hi-fi cabinet for me.
Even back in the 1950's, BSR used that terrible grease
that hardens like epoxy.
How do I know this ?
The speed selector was totally immobile, and I could
not figure out why.
I reviewed the exploded diagram of the parts and
linkages in the speed selector area over and over.
I finally realized that part 19 called the speed
change pivot was a sleeve that Part 22,
the speed change lever assembly, was supposed
to move up and down on.
This allowed the idler wheel to move to different
speed positions on the stepped turret.
It took butane flame and a small hammer to knock
the pivot free from the lever assembly.
Yes, good old BSR grease on the pivot, hard as epoxy .
Also, there is not a C-clip that retains part 19, it
is a nut. A C-clip would not work at all in this
set up. Sams missed that item.