On a kubota B 2626 the rod that operates the center position safety switch keep coming out of the hole where it goes into the transmission linkage. This is real hard to access . I cant tell how it was held in before . I can put the rod end back in and it will come out when the HST pedal is pushed in a forward direction. Has anyone seen this before or have any thoughts on a fix , with out having to split the tractor to access the transmission linkage. Thank You