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4494 remote problem


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Have a case 4494, use it to run a hesston 3x4 4790 baler. The issue I have is that I "loose" pressure on the remote to keep baler pressure. The reason I know the baler console tells gives me an error of "c inc", which means the baler can not increase pressure. So I put a pressure gage on the remote and only have about 1100psi on the remotes. I am not sure how, but at times the baler will keep pressure fine, than it will just drop off, and I get spongy bales. Steering works fine, transmission shifts fine.

Was not sure if it was a tractor issue or baler issue, changed tractors and put the 4490 on baler and everything is fine. The 4490 has a remote pressure of 2100 psi.

Need to get the 4494 back on baler, any ideas of what could be going on? A valve sticking, spring broke?

Thanks for the help.

David

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5 hours ago, grassseed farmer said:

Have a case 4494, use it to run a hesston 3x4 4790 baler. The issue I have is that I "loose" pressure on the remote to keep baler pressure. The reason I know the baler console tells gives me an error of "c inc", which means the baler can not increase pressure. So I put a pressure gage on the remote and only have about 1100psi on the remotes. I am not sure how, but at times the baler will keep pressure fine, than it will just drop off, and I get spongy bales. Steering works fine, transmission shifts fine.

Was not sure if it was a tractor issue or baler issue, changed tractors and put the 4490 on baler and everything is fine. The 4490 has a remote pressure of 2100 psi.

Need to get the 4494 back on baler, any ideas of what could be going on? A valve sticking, spring broke?

Thanks for the help.

David

Never worked on case but neighbor had one like yours on a sprayer. Had about same problem and compensator valve on pump was broken so it would not build pressure. 

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Try pulling 2 remotes at the same time.  And watch the psi.  If it is higher, then the oribkem is in the signal shuttle spools.

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No. The compensator is part of the hydraulic pump. 

There are 2 shuttle spools in each of your remote valves-a primary spool and a secondary spool. They isolate the signal pressure so that the highest signal pressure is sent to the compensator/pump. The o-rings in question are items 26-28 and #34-36.  Either could be damaged. 

When you replace them, use the correct o-ring or else they will fail shortly after. The correct o-rings are harder material than regular o-rings, and rather expensive for o-rings  as well. 

5A4FF138-14F4-41CA-8B6B-ECE70370A4AF.png

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SDman gave good info. My guess at where the problem is, would be 34-36.  I think if you look at the CE side of the business you can get a Teflon ring for the shuttle spools.

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