[rotorwrench]

The balk ring will generally be set up in the correct position when putting the transmission together so it will stay in position unless someone turns the output shaft while the solenoid is removed (not uncommon). Folks love to turn transmissions to see if they will go into all the gears. There is enough room in there for it to rotate past the two ears that keep it in the function zone. Those instructions will allow it to be rotated back into the zone in alignment with the operating pawl. If the balk ring doesn't have enough tension between it and the gear plate, it may just stay in the down position due to its own weight. This would make it difficult to get it to rotate up to align with the pawl bore.

Hopefully, yours has enough tension to allow it to rotate with the turning of the shaft. I haven't found too many that are sloppy loose. Most hold their tension pretty well. If it's loose it will make noise when the transmission shifts into overdrive. Your book should mention that in the troubleshooting instructions.