Karl F, Thank you for the kind words of concern and wisdom. You do not post as often as some, but when you do it usually has purpose. I thumbed my IH TC-88 parts maunal for the correct "stock" filter and found none for the 17 GPM pump, but found the pump. My dealer said the "donuts" would work for both. I have since quit using that CNH dealer since the Branson/McCormick dealer closer to me is now an IH parts dealer, much brighter guy.
As for my plumbing... I chose to go the route I went for simplicity. I did not have to alter ANY steel lines. Yes, you warned me against using the plumbing path I drew out because the power beyond valve would take priority from the steering when activated. The steering does fade while using a PB valve, but I have learned to circumvent this by planning my movements. It is rare I am turning and using the loader at the same time. Besides, as fast as the loader is now I do not have to be moving and cycling the valves to save time. I dare to say it is faster than most NEW OEM systems! Sometimes it is almost too fast! Well, never too fast.
Karl F, I do not know if you saw the plumbing arangement on the PB valve body its self or the return lines. I can post pics later if you would like. I used open centered (non poppet) qiuck disconnects and alternated the male and females so I could remove the valve tower completly if required and restore the OEM system if need be. For general use, I can just unplug the 4 - 1/2" qd's from the loader lines and be out in 10 min flat.
An external pump and reservoir would have been a PITA from the get go... Sorry Allan NE, and others that suggested that one, I did not agree with that one bit. I think my total cost in pump, fittings, hose, valve, steel, ect for the hydraulic redo including "freebe's" was about $500-$600, plus the $3800 for the loader. Grand total of about $4400. I feel it was worth it even if it was worth more than the old 504 itself :twisted:
I have been looking at various OEM designs from the past and wonder "what the heck?" Being an Engineer myself I tend to look deeper into things than required. I am proud of my creation. And I am glad I have motivated and inspiref others as well.
The reason I am so chatty is that I was burning a brush pile Sunday and jammed a limb into my eye... I am on meds and at home during working hours... My wife would beat me if she knew I was not resting :D I would rather be sharing info here!
Thanks guys, with out ya'll I would have scrapped that dang 504 years ago.
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