[Mjensen]

I have a sno pro 3000 I have replaced all the wiring has new valves and coils I have pulled it all apart cleaned it all out cleaned all the valves pick up tube and return blew air through the valve body I am at a loss. Is there anything else I could be doing?? When I hit up on my controller it takes a second then the motor comes on it jumps a little but won’t go up. If I jack the plow up with a floor jack so it has no pressure on the hydaulic cylinder it will go up all the way and then I can hit down it will go down . Any help would be much appreciated

 

[Knucklebusta]

Have you tested the pump output pressure to verify it has enough?

I dont know curtis so I cant give you numbers on acceptable numbers, but I would assume somewhere in the ballpark of 2k+ would be what youd want to see.

 

[Mjensen]

I have not I don’t have anyway to test the pressure however it makes ???????? fine angling left and right it’s just going up I’m beginning to wonder if it’s a cylinder issue the way it’s acting but I’m not sure because like i said it’s acting like it’s not getting enough pressure

 

[WalterFGBS]

I think your lift valve maybe damaged... is it opening fully under load?

 

[dieseldude]

You need to remove the lift hose and put a pressure gauge on it, you will need a 5000Lb pressure gauge, that's what I use.
You are looking for 2000Lbs pressure, in that area. It takes a lot more pressure to lift the plow than to angle it.

 

[dan52]

I have a curtis 2000 plow works great for a while and then it won't go up you can hear the motor spinning then I get it back in my shop let it sit overnight and come back to rest it and it works up down and side use it for a while and the same thing happens again
What can I check
Thanks

 

[Knucklebusta]

Hows the fluid?
When it won't do anything, will it still angle?

 

[dan52]

Hows the fluid?
When it won't do anything, will it still angle?

It's full of fluid
It won't go up or angle

 

[dieseldude]

My guess is the fluid has water in it, and the screen is frosting up. Take the reservoir off, clean the screen and flush the system.

 

[dan52]

I'll check that out and let you know
Thanks

 

[dan52]

I'll check that out and let you know
Thanks

That was the problem
I changed the fluid which was milky and flushed the lines
It's working great now
I'm trying to find a new reservoir cap or rubber gasket so far not much luck
Thanks for your help