Bh77 backhoe hydraulic question

I have a l3800 and trying to add a bh77 backhoe. I removed the power beyond hose and ran lines to the backhoe. If someone has a tractor backhoe combination like this could you verify where the hoses connect on the backhoe. I now have a long hose that runs from the loader valve and connects to the female quick connect that is mounted securely on the backhoe. The other hose runs from the block under the foot rest and terminates above the rear axle and is connected to the backhoe via a long hose from the backhoe that has a male connector. Hydraulics don’tt work but it will jiggle when I hit the controls. Are the connections like the ones on your tractor or do I have them reversed or something. Oil level is at top of window. I put all new quick connections on as I suspected fluid not returning. The hoe worked a few weeks ago when I bought it off another L3800.

Thanks very much for your time in taking the photos and the detailed explanation on the hoses. My hoses are connected just like yours so I can rule that out now. I may have an issue with the backhoe valve or an air lock I just don***8217;t know how to troubleshoot this problem. Since it did work fine a few weeks ago on another tractor i tend to think the problem is in my tractor hydraulics but my loader works great.