How to set up garden plow---cross post

I have read everything I can find on the net and at the Brinley site. My garden tractor is a Homesteader with a Brinley plow. This tractor is the one made in Clinton Arkansas, Not the Allis Chamlers. I read that the plow should have a curve in the cutting edge called suck. Mine looks to be a little more than the instructions say. My ground hasn't been plowed in years and has grass on it, Ie. it has been part of my yard. The plow will go down about 1 1/2 or 2". The ground is heavy black ground and it may be a little wet but I don't think so. It will go down just so far and then the plow kick down in front and up in back with just front few inches (4 or 5") of the plow digging a trench in the ground. How can I make this plow engage the ground more and plow as it should. Is my ground condition just not right? Have I got something set all wrong. I have turned it steeper and more flat and can't get it any better. when I change the setting it does change for the worse the way it plows.
If I understand correct the plow should go in the ground and to the proper depth by its self ie. I don't need to put any down pressure on it, just being sure the sleeve hitch will go down far enough.
L.D.

That link should get you to the Brinley set up nstructions

• Cub Cadets

I don't know anything about your setup but it sounds as if the mounting is too loose if the plow is able to tilt forward as you described.