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Hydraulic relief valve; 190
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darrel in ND View Drop Down
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Joined: 22 Nov 2009
Location: Hebron, ND
Points: 8779 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Topic: Hydraulic relief valve; 190
    Posted: 25 Aug 2022 at 10:12am
Ok, I need my memory refreshed.
10-15 years ago, on my very early one ninety snap coupler tractor, I had weak lift on the lift arms. Upon some advice obtained through here, I swapped the relief valves around between the lift arm valve section, and the remote couplers valves. Got good lift function then, and have gotten by with the remote couplers being weak. Until now. I need the remote couplers to be up to snuff. At one time I had a couple of agco parts to repair the relief valve with, but have no idea now where they are. Can someone help me out with what parts/part numbers I need to fix er up with?
I wouldn't be opposed to just screwing in a complete nee relief valve, if it's still available from somewhere. Thanks, Darrel
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Lynn Marshall View Drop Down
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Points: 2483 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Lynn Marshall Quote  Post ReplyReply Direct Link To This Post Posted: 25 Aug 2022 at 7:41pm
Rustle up a 3000 psi or higher gauge and see where you're at to begin with. You should be able to adjust the relief valve and see if it raises the pressure. It could also be a blown seal in the pump.
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DrAllis View Drop Down
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You swapped the Traction Booster relief valve with the main relief valve. Main is 2200 psi and T boost is 2100 psi. Trouble with your complaint is this: the lift arms and remotes are on the SAME relief valve. Check out what you have at the remotes and go from there.
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rw View Drop Down
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Points: 388 		Post Options Post Options   Thanks (0) Thanks(0)   Quote rw Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 2022 at 3:57am
I got a new one from agco dealer this summer.
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darrel in ND View Drop Down
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Points: 8779 		Post Options Post Options   Thanks (0) Thanks(0)   Quote darrel in ND Quote  Post ReplyReply Direct Link To This Post Posted: 26 Aug 2022 at 6:31am
Originally posted by DrAllis DrAllis wrote:

You swapped the Traction Booster relief valve with the main relief valve. Main is 2200 psi and T boost is 2100 psi. Trouble with your complaint is this: the lift arms and remotes are on the SAME relief valve. Check out what you have at the remotes and go from there.

It is possible that I am thinking of something different, but I was sure that it was on this tractor that I did this. It was several years ago, so maybe I am not remembering correctly. I haven't had time to really do any troubleshooting yet, but I'll get on it this weekend hopefully, and report back. Thanks, Darrel
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