Posted by Harold Hubbard on December 19, 2008 at 11:25:07 from (199.232.228.77):
In Reply to: Re: Note to self posted by Eldon (WA) on December 19, 2008 at 08:22:26:
Nearly every back blade that has been brought to me for repair has been messed up while plowing snow. No body ever seems to break one just moving dirt. I think this is because you can get up a pretty good speed in snow, and the obstacles are not only hard but frozen in.
Blades built specifically for snow all have some sort of spring loaded trip mechanism to protect them from this.
Almost all hydraulic angle truck mounted snowplows also have a "crossover relief valve". This allows the fluid to bleed from one end of the angling cylinder to the other if you hit something really hard. It is still possible to blow hoses, but not nearly as easy, and it really prevents iron from bending. It mounts as close to the cylinder as possible with two short hoses running to the cylinder, and your main hoses going into the valve.
It might be worth it to put one on your blade. You might spend, I'm guessing, $110-150 for the valve and two short hoses.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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