hydraulic flow?

[farmall 55a case]

What do you go by on it? My tractor says it has 11.6 GPM pump and then it says it has 16.9 GPM total flow. So let's say you want to buy a third function and it say for systems over 14gpm you have to buy a upgrade kit what one do you buy?

[kennyd]

Your machine may have two pumps, with the second one dedicated to the steering-most CUT's are set up this way. They count it in the total flow as a numbers game, but you don't have that much to work with at the remotes. I'd use the smaller number to figure what you can power.

[herringchoker]

I agree with Kenny.

[farmall 55a case]

Thanks it has two set of remotes on the back. Its not a compact tractor, if that make any difference? But to be on the safe side I should go with the lower number. Never really thought about it having two pumps tho! Thank you!

[J_J]

Your hyd system appears to be open center hyd, with implement flow of 11.6 GPM.

Your valves should be equal to or slight larger than max implement flow.