I just got this FEL connected on this tractor and the Controls don't work. The RAMs for the Tilt were removed. There was no oil in them when they were reinstalled. The Lift Rams were not removed. But the FEL has not been used for 5 years. When I used the controls, I had a slight movement for the Tilt and almost nothing for the lift. I suspect that there is Air in the Rams. Is there a Bleeding procedure?