Well, you don't say if it is a front blade, but I'm going to assume it is. Also, you don't say what tractor..... I have ran all sorts of equipment so this statement comes from experience. The lock out pin, really has no place on these machines. Yes, it will enable you to put down pressure on your blade, but, let me explain something. These blades and tractors are small and don't have much weight. What makes a blade "dig" has more to do with the angle and the cutting edge. Just like with a plow. The front blade wasn't made for "digging" it was made for "pushing". There is no way to change the angle, but you can sharpen the cutting edge. The only way your going to get it to dig in well, is if it is sharp, and you use something like a tiller or a ripper to tear up the soil so you can move it. Putting in the float lock-out pin will help, but not much. It's not a bulldozer.
