Desperately need help. I am trying to help my daughter with her 135. The hydraulic fluid was contaminated so I changed it, changed the filter. The 3 point has always worked great, the front forks have always been spotty in operation. Right now I have perfect 3 point operation but zero front hydraulics.I have tried two different diverter valves, same problem. I have disconnected the pressure line to the front blb bm20 controls and have virtually zero flow . How can a 3 point work perfectly and the fronts nothing ??? Terribly confused and going around in circles!