Ok, I see the other cutting edge there now, just never hit me. You could seriously pull some snow back with that baby.
I'd need one with the main cutting edge that tripped to save my teeth for my yard. (tirechains on skidders are always 1/2 pulling up rock that freeze in. The first time or two I plow each fall is a bear) but it would'nt be to hard to engineer a trip edge into one of these either.
I guess if you had a normal driveway that would not be as big of a factor as it is here, but it does allow one to speed along with less fear of needing major dental work
Duty cycle is 100%, thinking about going with a water cooled gun though, hehehe.
The top on the pusher works just like Sterclan said. If you look at the flags you will see that they are set to be used in the back-drag position. Don't really need them because you can see the cutting edge from that position, but I had them and they look good.
The reason for the full top is more snow capacity in back-drag mode. While back dragging, the pusher rides right on the cutting edge for a perfect cut as long as the ground is frozen or your on concrete or blacktop.
In normal mode the pusher glides on the spring steel runners on the outside, so I left the cutting edge up 1/8 inch for a little rock insurance. I have a long gravel driveway and never have any problems. I also do concrete yards and clean them up as good as I have ever seen.
The cutting edges are new 5/8 inch take-off's from a grader, so they will take all the abuse you can give them with a skid. I went with the steel cutting edge over the rubber thinking I may level some gravel or dirt with it, but that was before I built the dozer blade. I will show you that when I get some good action pics.
Excuse me, I have to go check my fillings.