Front mount snow blade

[billkater]

Red Horse,

What do you mean by a cross cushion valve? Never heard of one. My cylinders have 3/8 inlets on them. Can you point me to one?

Thanks

 

[Gizmo2]

You say you will not be abusing it but we all say that, when the snow gets deep and heavy you have no choice, but to push it to the max.

Wiser words have not been spoken.

 

[Gizmo2]

I would suggest however that you do put a cross cushion valve in. I plow mostly unpaved surfaces and every know and then I will catch a raised rock and while the spring loaded blade will tip, the cushion valve lets the blade rotate without twisting everything. When I built mine I was clueless to to such a thing and someone suggested it-glad he did-they work.

Never had or used a cross-over relief valve for 22 years. Read about it on this forum, I think from kennyd but not sure. I was plowing back piles after the last snow storm and was hitting the piles fairly hard and the blade would change angles. Said to myself COOL!
Actually now that I think about it.....I never had hydraulic power angle before this year....What a dumb a** I am. Point is I like the way they work.

 

[kennyd]

What do you mean by a cross cushion valve? Never heard of one. My cylinders have 3/8 inlets on them. Can you point me to one?

Thanks

The proper term is "crossover relief valve" or CRV, they are are also known as "cushion valves". Basically, when the pressure get's to high on one side, it "relieves" to the other. Most popular on snowplows, thumb circuits, an can also be used on hydraulic motors.

Here is a perfect one for you: Crap, the Surplus Center site is down...it's item number 9-4016-H

 

[Gizmo2]

What do you mean by a cross cushion valve? Never heard of one. My cylinders have 3/8 inlets on them. Can you point me to one?

And looks like this.....

 

[Ford tractor]

When you mount your rear blade on your tractor and start plowing, is there a possibility of catching the outside end of the blade on something and breaking a lift arm or bending the blade? Yes there is.

The difference is the $50 lift arm compared to the $2000 loader frame. I'd rather not harm any component, but if one is going to be harmed, the cheap one is preferred.

 

[JB4310]

Never had or used a cross-over relief valve for 22 years. Read about it on this forum, I think from kennyd but not sure. I was plowing back piles after the last snow storm and was hitting the piles fairly hard and the blade would change angles.

I've never had one in all my years of plowing, does it ever relieve when you don't want it to?

I assume it is adjustable?

JB.

 

[Gizmo2]

I've never had one in all my years of plowing, does it ever relieve when you don't want it to?

I assume it is adjustable?

JB.

No it does not. I, like you, thought to myself "yeah sure I need one". Have to say it is actually cheap insurance and the other day it impressed me, instead of throwing the tractor or tweaking something someplace it just changed the angle of the blade and I kept right on going but I was hitting the pile rather hard.

I believe mine is set a 1500lbs. Which brings up an interesting observation. When angling the blade and the cylinder gets to it's end there is a slight clunk in the hydraulic system someplace, happens in both direction. I assume this is because the tractor pressure is about 2500lbs, the relief valve is at 1500lbs and the clunk is the relief valve kicking in, can only hear it when running at idle and sitting still.

 

[caddison]

Well I'll throw mine in the mix. Been working on it and finally got the hoses securely mounted. It has been nice . I am pondering an adjustable mount instead of the chain. It looks like the cross over relief valve might be a good idea as well.

Now for a little clean up and paint! Looks like another big snow in the works here in NW MO so it will get another workout!

 

[billkater]

First big snow since I got my blade finished. Cut my plowing time from 5hrs to 3 1/2hrs. Gonna try a chain lift instead of the ridged top link and see if it works any better.