I just bought my FLU 419 to work on some property I am buying. I was a medic in the army when these things were rolling around Fort Bragg. All the tools are there but the bits. Anyway, The -10 says to engage the PTO before I use the back hoe. But, when I do, the back hoe does not move. When I engage the power tools, nothing works. The engine reves up and I can hear something click, but no pressure. Is there a valve I am missing? Are there, other than the -10, resources I can use to learn about this new beast?