The impression (using the ‘rule test’ in the book w/no ink) is noticeably and consistently light on the operator side, so we suspect the operator side of the carriage needs to be lowered. We also noticed that the “ceiling” of the Under Rail is somewhat worn (you can feel a very slight lip on it for a short length around the center of the bed).
We’ve read Paul’s comments on this Briarpress post (https://briarpress.org/58765) and referencing the illustration in the book. It seems that our “steady roller” has the eccentric adjustment that’s pictured in the book (and Paul’s description in that post) for the “carriage rollers” and our “carriage rollers” have a different type of adjustment (outer nut with tabbed bolt, see photo). So we’re unsure where to start. Presumably the carriage rollers can be adjusted by holding the bolt with a wrench and turning the nuts with a bigger wrench.
So I think we understand HOW to make the adjustments, but we’re unclear on the overall (and feeler-gauge) procedure. Are the carriage rollers supposed to be tight against the ceiling of the Under Rail? Is that wear a problem or a symptom?
Incidentally, the carriage gears feel a tiny bit loose in the tracks, the hand crank has a little play, so we suspect lowering the carriage might take up some of that play as well? Is that play normal or a bad sign?
Thanks to anyone that has insight!