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Restoration & Repair Tips Board

Re: Front bucket won't work anymore

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Author  [Modern View]

03-22-2014 13:32:34

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The bottom plate on the control valve... I'm assuming this is the port plate the spool valves bolt to?

And you fixed it by replacing it?

If so, pull the plate back off and compare it with the original one. Carefully examine where each port goes. There are different configurations depending on the application. They look the same from the outside but are drilled differently internally. Also some can be installed backward, most can't but some can.

Also check your line connections. The P port is oil pressure coming from the pump.
The T port is return to tank.
The A port goes to one end of a cylinder or set of cylinders.
The B port goes to the other end of the same cylinder or set of cylinders

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Jack Jr

03-23-2014 17:52:52

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 Re: Front bucket won't work anymore in reply to Steve@Advance, 03-22-2014 13:32:34  
Thank you for your reply. I took it all a part again & found the spear looking thing with the spring on it that sits between the valves wasn't in quite right. With it seated in properly I have my use of the front bucket back, but I now have my leak back as well! The tractor has the old AGIO control & the bottom plate had broken, been welded & broke again. Since it is cast iron, it isn't going to hold and finding a replacement hasn't gone so well. I haven't been able to find a foundry to make a new plate so I was just going to put on a new one, but have not been sucessfull in finding correct replacement for the plate or the two spool control. I took the control to the local hydraulic shop and they told me they don't make a replacement for either the plate or the control. I have been checking the bone yards, but still nothing. Any suggestions? Surely with all the work bulls still in use their must be a 2 spool control that is compatable.

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03-24-2014 08:14:52

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 Re: Front bucket won't work anymore in reply to Jack Jr, 03-23-2014 17:52:52  
You can find brand new, 2 spool control valves on Amazon. Might have a slightly different mounting bolt pattern, but grab your drill and you can make it work. Way less hassle and probably cheaper than trying to fix that original.

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03-23-2014 18:37:40

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 Re: Front bucket won't work anymore in reply to Jack Jr, 03-23-2014 17:52:52  
I would think just about any control valve assembly would work, as in replace the whole thing, valves and base plate. As long as the supply lines were the same size it should work.

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