Hi Phil,

I had once a SF that had all kind of troubles when reaching the right-hand margin stop. In my case it had to do with the margin release system, some levers where mis-aligned. Check the lever that goes from the MR key to the back of the machine (to bypass the margin stop) as well as the little levers and springs below the MR key (that provide the key lock).

Lau

Thanks Lau,
I was suspecting that area as well, since I had to replace a spring down there which links the margin release mechanism and the key lock. That area of the machine had some junk spilled on it in some decade prior and it was all gummed up badly. Perhaps more cleaniing in that part of the mechanism is in order. I should get a can of carb or brake cleaner and really do it right. I've been using naptha and judicious scrubbing to get my typewriters clean lately but perhaps it isn't working as well as something like brake cleaner which instantly removes all that grease under pressure.
Phil Forrest

At the end of the line, when the carriage hits the margin stop, I can't push the carriage back to the right. This is prevented at the position when the escapement is tilted or disengaged from the escapement gear. The dog which catches the teeth is sitting just above and will only click down to allow the carriage to unlock and be returned to the right. To get this to happen, it takes a gentle nudge on the right side of the carriage. I don't know what the mechanism that physically holds the carriage is since I couldn't see it working. All I could detect was the escapement moving just a millimeter or two. When it did this, then the carriage can be moved correctly and easily.
Phil Forrest

I was curious, so I opened up one of my Travellers. For your reference: the tilting part goes only up when you press a key or the space bar. When pressing a key it tilts up and down lightning fast. Holding down the space bar keeps it up, until you release the space bar. Moving the carriage to the left or right by hand does not tilt the part. The normal position is lowered, and it should be lowered as the margin is reached.

However, when testing out the above, the problem you described occured a few times. Very random, and hard to reproduce in my case. The constant factor was that it only occured when reaching the margin. Two times I managed to reproduce the issue by fiddling with the margin stop, trying to set it in between two positions. This suggests to me it may be worth to try to re-adjust the margin rack slightly