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Message: <blockquote data-quote="scottyk" data-source="post: 16202" data-attributes="member: 1126">Aloha again guys and thanks for the suggestions.  I checked the cylinder today and it is okay; the piston holds under pressure of air and only moves a little then stops and no more air can go through.I started the engine with the extend arm hose off and joystick in neutral.  I immediately got high pressure oil shooting out of it.  Just to be sure I took of the hoses of the bucket circuit and started machine and got no oil shooting out on start up.  Only when I moved the joystick oil came out of the hoses. I believe the problem is a stuck spool or valve and am about to open up that circuit but wanted to know if anyone has taken apart one with the devices or extensions of the valve body in the photos below.  I don't want to open it up the wrong way and have check balls and springs fall out unexpectedly (which you should always expect).  Any help would be appreciated.<img src="https://www.skidsteerforum.com/Portals/57ad7180-c5e7-49f5-b282-c6475cdb7ee7/TTTGallery/CAT%20307SSR/DSC02275.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /><img src="https://www.skidsteerforum.com/Portals/57ad7180-c5e7-49f5-b282-c6475cdb7ee7/TTTGallery/CAT%20307SSR/DSC02277.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" /></blockquote>