Albion gearboxes didn't have much of any adjustment for common wear of components. Everything was set up to go into its proper place when new. After they get wear on the shift pivot, rachet, shifter fork, and gears/shafts/dogs, they can get to a point they don't want to go into some gears well. This led to filing the holes out in the shifter guide plate and even modifications to the plate to allow more movement but in most cases, a good overhaul with replacement of excessively worn parts will do the trick.