A standard maintenance visit starts with checking spring tension and balance - on a door this age, that's often where the wear shows up first, long before the opener or the panels. We inspect cable fraying at the drum, check the bottom brackets for rust from years of winter road salt tracked in, and test the auto-reverse and force settings, since those get knocked out of adjustment as springs weaken and the opener has to work harder to compensate.
We adjust track alignment where decades of settling have pulled it slightly out of square, and we replace worn rollers before they chip the track. If the spring is close to its cycle limit, we'll say so and quote the replacement rather than patch around it - on a door built in the 1963 era, that's usually a matter of when, not if. We travel out from Vienna for these visits, so we try to bundle the inspection and any needed part into one trip when we can.