Backhoe 110 tlb 7th function hydraulic flow rate?

[gcfisher75]

So here's a question, how much flow does the power beyond circuit have? I'd like to run a trencher off my ssqa, and I have no auxiliary hydros, so I was gonna run hoses from the PB to the trencher, I realize that this would make the trencher turn the whole time the tractor was running, but would it work? I want to try it and if it does then I could implement a valve later on for on and off operation...