You don't want to pull the PTO assembly just for a final drive inspection as the PTO drive shaft is about 40" long with splines on the drive end. To reinstall the PTO assembly it is good practice to pull the hitch cover so you can guide the spline end on the shaft through the seal. A damaged seal will allow the torque tube hydraulic oil to leak into the transmission sump, this is a common problem with these tractors.
To remove the cover disconnect the links at the end of the lift arms and the other attachments. You'll be lifting the hitch cover which includes the rockshaft, piston/cylinder assembly, and lift arms as a unit.
This is a partial view of the final drive area with the cover off.