[AJD] John D 855 tractoreer

[Nancie Williams]

My 855 JD tractor will not engage the mid PTO shaft to run the mid mower. I have checked the magnet switch on the dash that controls the mower on and off. I have checked the seat switch which is ok. I am trying to find the on off switch on the side of the hydro transmission that controls the mid PTO shaft. So far I have been unable to find it. 
any help would be appreciated.