Earlier this week, we got the adjuster wired up and assembled and fitted in place. There was one problem, the closest we could get the chainwheel to the pivot of the balance arm for lever 32 still gave too much pull on the wire - we either had to slacken off so that the signal didn't start moving until the lever was nearly half-way across the frame, or we couldn't pull the lever over to the fully reversed position. So we needed to swap the existing balance arm, which had 5 holes, for another which had six - the sixth hole being closer to the pivot. So here we are with the pivot caps removed ready to do the swap:
Very fortunately the adjacent lever 31 was one arm with 6 holes.
Having completed the swap, it was found that the chain wheel had just the right amount of movement, seen here with lever 32 reversed:
There was a minor problem with the down rod; you can see the end of it is at the furthest hole of the balance arm. As a result it was just catching mid-travel on the edge of the upstairs floorboard - a couple of minutes with a saw and chisel making a small notch solved that problem.
Finally, the freshly painted adjuster in position:
Just need now to do a notice to go alongside explaining what it is!