Hi I have a new holland 8560 when I go into reverse or c range it goes into neutral and f44 flashes in a or b range. I have changed the petentionmeterrs and Calibrated but it's still the same. Mechanics in local dealer can't tell me what is wrong can anyone help please

Farmer 150, May 2020

https://www.justanswer.com/agriculture-and-farm-equipment/8l34m-new-holland-8560-tractor-keep-having-re-calibrate.html

Fgu, May 2020