8670 Update, Low Hyd Pressure

Put the hyd oil in the 8670 today and started it up. We have brakes and the 4Wd output shaft doesn't leak! We ran a pressure check on the hydraulics at the remotes. All we had was 1500#. This was at idle and
wide open, cold oil. We are thinking we have pump issues. It should be more than 2500#. Mine is not Mega Flow. There is a counterclockwise pump and a clockwise pump. To replace these from NH new $2700.00 each.
Rebuilt from NH is # 2000.00+. Also, while pulling on the remote lever, the lift arms started coming up. Can anybody explain this? Also, can the pumps be rebuilt? Is there another source for these pumps?
Thanks in advance!
 
I've got an 8670 with 11200 hours and still good Hyd pump pressure. It is a mega flo. I have had problems with leakage of O rings between the remote valve stack causing the problems you describe.
 
DON'T REPLACE THE PUMP!!!

You have load sense signal issues within the remote valve stack. Your remote valves need to come off, come apart, and have all of the load sense/shuttle check valve o-rings replaced. Very common problem with these valves.
 

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