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Massey Harris & Massey Ferguson Tractors Discussion Forum
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Re: Massey Ferguson 255 Aux hydr. not working

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10-04-2012 08:01:09

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Your # 2 picture is the aux valve.

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10-04-2012 15:06:10

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 Re: Massey Ferguson 255 Aux hydr. not working in reply to Dieseltech, 10-04-2012 08:01:09  
Thank you! I didn't know if it was the housing for the valve, some type of cover or what. Cleaned the rod off where it goes into valve, and liberally sprayed around with penetrating oil. Thought I'd give it time to work before checking it. It'd be awesome if that's what it was. Just in case, I have been able to figure out how to get to the valve, and how to check to see if the pump is actually pumping any oil. Am going to try that here in a bit and see what happens if it still won't engage.

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10-04-2012 17:53:27

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 Re: Massey Ferguson 255 Aux hydr. not working in reply to SMatt, 10-04-2012 15:06:10  
After letting the penetrating oil sit for awhile, I tried to work the lever again, but saw no change. It still seems seized up. I then loosened the high pressure side of the line at the cover plate on left of tractor. I pulled the kill switch, and tried to turn tractor over. (Local dealer said to try this.)This made the pump spin enough to send out some oil, letting me know it is working. I also checked the hoses at rear of tractor with a screwdriver. The bottom hookup just made a whining noise, but no pressure. The top hookup had plenty of pressure, spit fluid out a good 10 ft. So, I guess the next step would be to remove the seat and the cover plate to check the valve itself? My question earlier as to the part labeled # 2 in the photo... this is the valve? Or the part that the valve is housed in? If I wanted to replace that whole assembly up the the rod, I'm only looking for the "valve"?

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