Kubota L3010 HST range adjustment

[Huskbota]

Tractor wont shift into midrange. When I first got it about 4 years ago, it was stuck in low range. I researched it and had ti adjust the linkage. I can't seem to find that procedure online. Does anyone know that procedure?
The shifter arm does slip out of the two shifting arms at times.

 

[rbargeron]

Welcome to OTT - the online factory parts lists show two versions of the linkage - one for S/N under 63212 and another for SN above 70001. Which do you have? If you confirm which, someone who knows the procedure may chime in.