I have an rc60 the bucket goes up and down has tilt forward and back.. but it wont drive forward or in reverse. I checked all my fuses and safety switches and they all check out. hydraulic fluid is down to the add mark but not extreamly low. I pulled the drive joystick loose and started pulling lines off one at a time to see if i had pressure coming out and nothing. absolutely no fluid getting to or from the stick. It has no leaks from any of the lines. i did attempt to check the charge at the test port, ended up blowing up my pressure gauge it maxed out at 400psi. I am ripping my hair out on this one. Any one have any ideas????