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JD 1790 Hydraulic Issues
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TheJDFarmer
Posted 3/18/2026 12:23 (#11589134)
Subject: JD 1790 Hydraulic Issues


Southern Middle TN
Need some help on my 1790. It has an issue where it's blowing hoses out of the SCV's. Hooked it up and pulled it out of the barn, unfolded it like normal and it never gave any issues. Took it to the field to make some passes, turned on the fans, CCS tank blower, and the Hyd drives. All was working like it should, then I went to fold out the markers and it blew the hoses out of the outlets. Hooked them back up and it did the same thing. Did it again and this time it blew the frame lift hoses and the fan hoses out of the outlets. I can turn on everything else except the markers and it works fine, but the moment I bump the markers it kicks the hoses out. Any ideas on what my problem might be? Checked the solenoids the control the markers on the block in the back and no blown o'rings or anything. Any help would be appreciated, TIA.
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