Tractor is a B2650 w/cab. I bought a 50" offset flail mower. I'm hooking up the Hydraulic lines to operate it to the bucket Hydraulic line fittings. To lift the flail vertically, I hooked it up to the up down of bucket, works fine. I hook the in/out of the flail mower to the bucket rotation, load, unload. If I push Hydraulic lever away from driver seat the flail mower moves in, if I pull lever towards seat it moves out. Seams to be backwards functioning. If I reverse the lines the flail only comes in, it will not move out. How do I fix so the Hydraulic pushes flail out when lever is moved outward.