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Case Tractors Discussion Forum

2294 and 4910baler

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karl h

12-02-2014 09:28:32

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Has anyone out here used a 94 series tractor with a Hesston 4910 Baler? The baler is heating the hydraulics, and a neighbor suggested that since I have the return line plumbed to dump right in the transmission I should just change the baler to an OPEN center configuration. He thinks this will help with the heating. Any thoughts?

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Adirondack case guy

12-02-2014 16:56:18

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 Re: 2294 and 4910baler in reply to karl h, 12-02-2014 09:28:32  
If your baler has a Closed Center system, there is a pilot valve that controls return flow to the sump. Since you plumbed the return with no restriction/back pressure which a closed system would have, the pilot valve isn't opening and all return oil is being forced through the main relief and then back to your tractor. I'm not able to tell you how to deactivate the Closed Center pilot valve. It may be as simple as adjusting a lead screw in the valve body to mechanically open the pilot valve, to allow free flow back to your tractor.

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karl h

12-02-2014 17:09:28

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 Re: 2294 and 4910baler in reply to Adirondack case guy, 12-02-2014 16:56:18  
I know how to change it back to a open center setup. Your analysis makes perfect sense, I didn't think about it going through a relief valve all the time...that will add some heat for sure!

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Case Nutty 1660

12-02-2014 10:22:17

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 Re: 2294 and 4910baler in reply to karl h, 12-02-2014 09:28:32  
I know nothing of the baler you are running but I know the closed center systems do not like running full flow all the time, I have seen several pumps taken out by tying the lever back and running through a extra valve, mEl hopefully will chime in or one of the others here that will have a answer for you

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