Case 580C Hydraulic pressure

I bought a pressure gauge off of EBay for $9.95. I don’t have a suitable hose to connect it, but removing the plastic trim piece from around the loader valve gave room to thread the gauge directly into the test port. All seems good now. There was this chattering screeching noise when at the limits when using the backhoe, but not anymore. I uploaded a video to U Tube if any of the experts on here would watch and liste

Discuss this in the forum topic 580C Power beyond fitting ?.