Mounting AC hydraulic valve on other tractor
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Topic: Mounting AC hydraulic valve on other tractor
Posted By: OhKen
Subject: Mounting AC hydraulic valve on other tractor
Date Posted: 22 May 2019 at 10:48pm
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Have a Case 930 that the hydraulics valves do not have a float position . Thinking of taking a valve off of a 7000 series and adapting to this tractor . The 930 is closed center , will a valve from a 7000 which is open center work ?
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Replies:
Posted By: Jim.ME
Date Posted: 23 May 2019 at 6:00am
The valve for the 930 needs to be closed center. I don't know if the AC valve can be modified with a closed center plug, etc. to convert it to closed center, or if the parts are available to modify it, if it is convertible.
What is this valve going to operate; remotes, loader, lift? How many spools are needed? It might be better and easier to just buy a closed center valve with float on a function, like a loader valve. You should match the GPM flow of the valve to your 930's flow.
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Posted By: MACK
Date Posted: 23 May 2019 at 7:58am
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7000 is open center, all other 7000 series tractors are pressure compensating closed center . MACK
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Posted By: Joe(TX)
Date Posted: 24 May 2019 at 11:48am
A valve off a 7000 series (not a 7000 model) should work. Plug the load sense port.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Posted By: DrAllis
Date Posted: 25 May 2019 at 6:21am
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I don't think a 930 Case is closed center, so a 7000 tractor (not a 7010 or bigger) valve should work. Actually, a valve stack from a 170 thru a 200 would also work. Case didn't even have hydrostatic power steering until the 70 series. You'll have to cap off the Traction Booster inlet fitting.
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Posted By: Joe(TX)
Date Posted: 26 May 2019 at 10:15am
If you don't need the traction booster, You can remove that section from a 190 or 200 valve. I have a 190XT valve for a tractor that had no 3 point.
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1970 190XT, 1973 200, 1962 D-19 Diesel, 1979 7010, 1957 WD45, 1950 WD, 1961 D17, Speed Patrol, D14, All crop 66 big bin, 180 diesel, 1970 170 diesel, FP80 forklift. Gleaner A
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Posted By: OhKen
Date Posted: 26 May 2019 at 9:55pm
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Thanks guys ! I will check the 190/200 options .
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Posted By: MACK
Date Posted: 27 May 2019 at 6:59am
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Same valves on D17IV, 170, 175, 180, 185, 210, 220, 190, and 200. All are better than 7000, because 7000 was mounted with spools up, allowing dirt to build up on spool, causing wear and leakage. MACK
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