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Re: Need lesson in tractorology hydraulics terms
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Posted by Fudd on February 13, 2001 at 20:30:27 from (64.156.37.75):
In Reply to: Need lesson in tractorology hydraulics terms posted by Rick from Paso on February 13, 2001 at 18:58:14:
There should be letters by each port or fitting.
P=pressure or hose from pump
T=tank or return to hydraulic tank
A=hose to one end of cylinder
B=hose to other end of eylinder
A&B are dependent on handle movement. Open center means when the handle is in the center position the fluid returns to the hydraulic tank, what you want. Closed center means fluid flow is blocked when the handle is in the center, which will build up heat. This is a 4 way valve. I think Northern Hydraulics or Northern Tools has a hydraulics book which should explain all this which I would reccomend getting. If you can't find their address let me know, I have it at work. Good luck.
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