Anyone able to help identify a carrier

[James Fritz]

Originally Posted by Lynn Eades

James, take the lid off of the gearbox. the selector shafts (3 in lid)may have rusted due to condensation. make sure the forks are correctly engaged. Try shifting each gear to neutral with the lid off.
The ball on the bottom of the gear lever may also be seized. This may break if you force it.
Removing the lid will help to isolate the problem. I don't think it will be jammed, due to the rotational load, as the motor would have rotated to a "neutral" position.

Thanks Lynn for your advice I will try removing the lid in the field to see what is jamming and if I succeed I will also get a feel for what the internal condition is like.

When I was there yesterday I sprayed most of the nuts and connections with liquid wrench. I try to do that each time I visit.