I can attest that the Bucher valves are top notch. And if multiple floats are important to you, you can do that with the Bucher valves but not the Prince SV ones.
Back to my "befuddlement", etc.: You've had this stuff taken apart previously. I think you need to trace all your lines against the factory or my schematic to be sure something isn't plumbed wrong.
Not to be spending your money, but I think you said that the control valve was no longer...
Look again at the link I provided above for the GC hydraulics. The backhoe valve is shown on that. But be sure to scroll down to the last post with the latest drawings. Those also show the loader lines albeit on your older model the coupler colors may vary.
I have looked back at your earlier...
I am befuddled about this event! It makes no sense to me considering the way that the loader, backhoe, and 3-point valves are plumbed. Is there any chance that something else happened? (color me confused)
Yes, but in the opposite order: loader, backhoe, then 3-point. Have you looked at: How Massey Ferguson GC 1723 & 1725 hydraulics are plumbed?
" Ask me how I know." Please explain.
Photos please! Have you taken out the pressure relief valve? It may have some crud in it.
Do you have the factory...
As always you are correct, it is a priority flow control, although the factory service manual calls it "flow dividing valve". The steering valve gets 7.5 liters/min, and the implement flow is 16.5 or 18.7 liters/min depending on whether it is the 23 or 25 horsepower model.
No word yet, but I'll contact them later today.
I think they will have to at least remove the oil pan to look at the debris and try to find a cause. Might send out the oil for analysis too. They will have to determine a cause to see if it is covered by warranty or not.
The rear PTO (540 rpm) is at 2532 rpm on mine versus 2829 on yours.
The mid PTO (2000 rpm although the service manual [page 1-29] incorrectly says 540 for this too) is at 2476 rpm on mine versus 2947 on yours.
I have never used either PTO.
I agree, it's the same basic engine. There may be some tuning differences in the injector pump to "detune it".
BTW, the trannies have slightly different gearing. I assume that is to let the engine run a tad faster at the PTO speed(s).