First, my tractor has the reverser transmission so I shift the tractor into forward/reverse by a lever just to the left of the steering wheel. What is working fine is the range I position for gears 1-4. I cannot seem to locate the gate or get to work range II for gears 5-8.
I'm still trying to figure out my new (used) tractor so hopefully, this is just user error.
I also did double-check the clutch travel and it looks like it's adjusted as far as possible.