We found a small plug on the outside of the tanks aluminum cap housing, in between the body (you can see it through the vents that are covered with an expanded metal screen). Almost looks as if that's where you apply a fitting to pressurize the tank. We just stuck a hose in it and applied pressure. And kaboom, the tank exploded and we drenched ourselves in hydraulic fluid, no not really just kidding, it worked like a charm, it took about 30 seconds but it worked. Make sure you replace the plug before lowering the mast or retracting the forks, had to learn that the hard way.
Thanks Guys for all your help!!!!