In Reply to: Hydraulic Control Lever posted by Steve Pfost on May 26, 2019 at 22:14:57:
The operation you describe is completely normal for a 9N/2N tractor. With the touch control lever all the way up, the lift goes all the way up to travel between fields. When you are ready to plow start moving the lever down and after about 1" the plow drops to the ground. From the point where the plow dropped to the ground, continuing to move the touch control lever down controls how deep the plow runs. A stop plate and wing nut are used in the slot to "set" the depth you want to use so the touch control is lowered to the same spot for each furrow.
If the touch control lever moved up and down freely, there should be a spring under the nut that holds the lever in place. Tighten the nut, more spring tension, so friction holds the lever in place. Eventually that assembly has to be taken apart to replace the cork disk.
If you want the lift to stay about 1/2 way up when you move the touch control to the mid point, that is called "position control". You need to get an 8N or newer tractor to have position control.