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Rebuilding hydraulic stack valve on 190
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Sandknob View Drop Down
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Joined: 12 Sep 2009
Location: Oblong, IL
Points: 2456 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Sandknob Quote  Post ReplyReply Direct Link To This Post Topic: Rebuilding hydraulic stack valve on 190
    Posted: 20 May 2010 at 10:01pm
How hard is it to rebuild the hydraulic stack valves on a 190?  All but one of the valves on my 190 are very stiff if not stuck.  One of the hydraulic remote levers even broke because it was to tight.  Is it feasible to rebuild or should I look for a good used one?
Thanks
Adam
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DSeries4 View Drop Down
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Joined: 12 Sep 2009
Location: Ontario, Canada
Points: 7378 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DSeries4 Quote  Post ReplyReply Direct Link To This Post Posted: 20 May 2010 at 10:34pm
It's not the stack.  Most likely, the linkages are all rusted up.
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Big Hunter View Drop Down
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Joined: 12 Sep 2009
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Points: 30 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Big Hunter Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2010 at 5:28am

I put all new o-rings in mine. (have a 190xtd) It wasn't hard to do. There were a lot of o-rings and some very very small ones. I would think oil or at least a film of oil would be in the stack unless it has been unhooked and setting aroundin the weather.
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scott View Drop Down
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Joined: 12 Sep 2009
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Points: 2635 		Post Options Post Options   Thanks (0) Thanks(0)   Quote scott Quote  Post ReplyReply Direct Link To This Post Posted: 21 May 2010 at 6:42am
I have a 7040 that has finicky valves. They gotta be in the exact spot to get the remotes to actuate. I was thinking maybe there were some o rings that might need replacing but wasnt really sure. Both levers "act" the same way. I have played with the speed valve under the seat and shimmed the hyd compensator to 375 lbs. Neither seemed to help. In comparison my old 220 was a pull the lever and something was gonna happen NOW...
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