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brian stanek
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Joined: 06 Nov 2007
Posts: 66
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 Posted: Mon Feb 18, 2013 7:45 pm Post subject: fordson super 3ph |
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just wandering if anyone has any ideas why my lift arms on 3 pt went up and will not now go down? first time i got it running this is what happened.
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WayneB
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Joined: 07 Nov 1999
Posts: 415
Location: Lunenburg, VA
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| Posted: Wed Feb 20, 2013 6:17 am Post subject: Re: fordson super 3ph |
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Un-loader valve on ram likely inoperative. Stuck.
Wayne
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brian stanek
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| Posted: Wed Feb 20, 2013 10:09 am Post subject: Re: fordson super 3ph |
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i assume that means taking the cover off to get at it?
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JMOR
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Joined: 13 Aug 2007
Posts: 12795
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| Posted: Thu Feb 21, 2013 6:14 am Post subject: Re: fordson super 3ph |
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| WayneB wrote: | (quoted from post at 10:17:26 02/20/13) Un-loader valve on ram likely inoperative. Stuck.
Wayne |
You may KNOW better than I do, but it seems to me that the "dump" circuit is independent of the unloader valve, so proper mechanical positioning of control valve should open the dump path & lower the arms. On the long shot that the pump output can flow more than the dump path, then 'stuck in lift position unloader' might keep arms up, but even then they should drop at engine/pump stop.
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brian stanek
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| Posted: Thu Feb 21, 2013 9:54 am Post subject: Re: fordson super 3ph |
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well it seems even with the tractor shut off and me standing on the arms they will not go down, tried the control arms in various positions? there is some kind of a unit on top of the housing with a control valve and hydraulic hoses with couplers from it, was wandering if it is affecting the lift part?
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JMOR
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| Posted: Thu Feb 21, 2013 10:13 am Post subject: Re: fordson super 3ph |
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| brian stanek wrote: | | (quoted from post at 13:54:41 02/21/13) well it seems even with the tractor shut off and me standing on the arms they will not go down, tried the control arms in various positions? there is some kind of a unit on top of the housing with a control valve and hydraulic hoses with couplers from it, was wandering if it is affecting the lift part? |
Very well could be.......operate that valve and see it all is then well with your lift.
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