Saturday, February 17, 2024

Adjusting the paper feed mechanism - part 6 and continuing

PAPER RELEASE MECHANISM ADJUSTED

I figured out a method that only need four hands, actually two hands using more than one finger independently on each hand. I was able to adjust the paper feed rollers and paper release so that it worked perfectly. See the movie below of this moment of success before the world got dark and ugly again.

SET PLATEN TO SPEC AND SUDDENLY THE FEED ROLLERS ARE OFF AGAIN

I had some resistance of the carrier moving across the line, which I believed to be due to the platen position so I went through the procedures to set its height and distance again. Low and behold, the darned feed rollers lifted off the platen and were back to the bad old behavior. 

  Curses

WHAT IN THE H*** HAPPENED TO THIS TYPEWRITER BEFORE I GOT IT?

It appears that all the parts of this typewriter were misadjusted in some weird way before I got it, with compensating maladjustments applied that led to the next issues. Likely that is why the paper feed mechanism was finally removed.

I think that the fundamental position is wrong - the escapement rack must be at a given distance from the print shaft and then the carrier adjusted to ride at this spacing. The rack is definitely NOT at that proper distance and I think the carrier rollers were tweaked to fit the current situation. 

With the carrier and escapement in the wrong place, the platen was apparently forced to an incorrect spot to still type, but the cascade of issues multiplies from this deed. I might have thought that this typewriter was tossed out of a moving vehicle or dropped several stories, except there are no signs of damage or scrapes. However, it is about as far out of adjustment as if it had suffered serious trauma. I suspect the traumatic event was human intervention. 

Each time I think I have this almost wrapped up, the other shoe drops and I find more issues. There are no procedures set up to put a Selectric together from scratch and adjust everything in some ideal sequence. Frankly, a typewriter that was out of adjustment like this would have been returned to the factory and a replacement ordered by the repair staff. Since the factory and the parts department no longer exists, this isn't an option here. 

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