Kubota Backhoe BH77 Cylinder Problem Fixed !!!

My boom cylinder seems to not be working correctly. The second example in the video is probably the clearest. I think when I push the control forward the main Boom should lift the tractor off the ground? And it does not. It seems as though it reduces the affective digging force by not engaging correctly. So I replace the relief valve on the main boom hydraulic valve and it fixes the problem.
Link to the relief valve
https://www.messicks.com/part/7K502-6...

Kubota: ASSY VALVE, RELI Part # 7K502-63710

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Disclaimer:
Due to factors beyond the control of Daniel Woodell, I cannot guarantee against improper use or unauthorized modifications of this information. Daniel Woodell assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk. Daniel Woodell recommends safe practices when working on vehicles and or with tools seen or implied in this video. Due to factors beyond the control of Daniel Woodell, no information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. Any injury, damage, or loss that may result from improper use of these tools, equipment, or from the information contained in this video is the sole responsibility of the user and not Daniel Woodell.