Recently I had to replace a cracked piston in my little 2 cylinder diesel Ford 1300 with a 3 point. The engine is running just fine now, but the hydraulics for my accessory arms no longer work. They raised slightly and then dropped permanently down after I got the engine running again. I can handle repairing a diesel engine, but I'm stymied as to how to get my hydraulic lift working again to lift my accessories. Everything is hooked up the way it was before. The fluid level is OK as far as I can tell.