[ARC5] need advice on Tx tracking adjustment

[J Mcvey]

This particular BC-696 was supposed to be "government refurbished" in 1953. It was on a single  rack wrapped in heavy plastic.The only problem was that whatever they used to clean it was not properly rinsed, so over the years in the bag, it ate the lock knobs and 
some of the case screws!Fortunately, the innards were OK.
The problem is that the tracking is off 4 khz from end to end. The specs say that it should be within 200-300 cycles.The osc trimmer was nearly all the way out of mesh, so I didn't have enough adjustment to bring it up to where it needed to be.I set the trimmer at 50% and adjusted the main osc cap. That got it on frequency THERE, but the tracking is still go good

This stuff is notoriously tricky , so I consulted the manual.Page 57 (of manual-PDF page  71) describes the process , but is very vague, talking about "changing the dial to the other side of the lowest frequency mark at a point about 
1 1/2 times from that mark as observed..."   WHAT???? This make no sense to me! 
Can someone explain what they mean in a coherent way?
Is it:1) adjust to highest frequency (done!)2) next,adjust the TX dial to find where the lowest frequency is shown on the dial.3) if not tracking,note where the lowest frequeny is shown on the TX dial, and move the TX dial 1.5 times the error in the opposite direction.4) adjust that new point to the lowest TX frequency with the osc coil.5) Move the TX dial to properly indicate the lowest frequency6) Use trimmer to tune to the lowest frequency.
I reworded it to accommodate modern test procedures using a frequency counter instead of "zero beat" 
Does this sound about right?


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