2nd. problem was that the Tab set and Tab clear keys on the right side of the machine were not resulting in the clearing of an existing Tab stops or the establishment of any new Tab stops.

With the machine covers off, I could trace back from the key-tops all the linkages back to the Tab bar located in the hinged cover behind the paper tray.  I made sure all link connections were cleaned and not binding.

The vertical post in the center of the Tab bar worked properly raising to set a Tab stop and lowering to clear a Tab stop.  But they were not actually engaging the "teeth" of the Tab stop...but rather engaging in the space between each of the "teeth".

I noticed the entire Tab assembly was held in place at the bottom of its bracket with 2 screws seated in elongated screw holes in the bracket...which I figured allowed for some side-to-side placement of the Tab assembly mechanism.  Loosening both screws a bit allowed to to move the assembly to the point where it operated the "teeth" and not the space in between them.  Once I found the "sweet spot", both mounting screws were tightened up.

Tab-set and Tab-clear work perfectly now and even a Tab all-clear motion now works.
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Great detective work. Always satisfying when that happens. I probably would have thrown up my hands. I've been tempted to pick up one of those out of curiosity but I've run out of room. It's my understanding that they sold well so they must be good performers. As for O rings for drive belts, I've had some success cutting longer ones (Amazon) to size, ca gluing, then shrouding the joint with heat shrink tube.  1/16" width for my particular case on Olympia electric. But if you've sourced SC O-rings all the better.

Pete E. wrote:

Hi Mike,

What amazed me is how those 2 metal levers under the machine go so bent out of shape.
>>I'm not surprised. More often than not I've traced problems to something bent, rather than out of adjustment <<

I have been getting my o-rings from McMaster-Carr on-line.  I had a package left over from my Hermes 10 electric work but those are a bit too long for the S-C.
>>> sounds like a great resource, I'll make note. <<<


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Someone gave me a S.C. Corona Seventy recently. Like your 5TE, it's electric but still has the manual line return so you don't get that aggressive return. It holds some interest to me because of that.

Dropoffs: given to me this year by friends:
SC Corona Seventy electric, SC Coronet super 12 electric, SC Corsair, Royal Varsity 1939, Royal KH 1934, SC Corona 3, 1917. Fingers crossed that someone will drop off a Hermes 3000. I've gifted at least 4 in the last couple of months, just to make room. 

New O-ring belts in place...
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