[AT] AT Digest, Vol 38, Issue 22

[Chris Britton]

To run a PS system off a hyd system that is also running a 3pt or a loader 
or other loads.. you will at least need a priority valve for the PS.. and 
let it get it's oil first, then let the leftover run the rest of the system.

Yes.. the more gpm/pressure a hyd pump is putting out.. the more hp it will 
require from the engine.

Soundguy

>From: John Wilkens <jwilkens at eoni.com>
>Subject: [AT] Add-on hydraulics and power steering?
>Anyone know of a good book on very basic practical application of
>hydraulics and old tractors?  One specific is...can you use a front
>or rear mount hydraulic pump that is being used to run a loader (etc)
>to run an add-on power steering unit also?  What capacity pump would
>be required?  What kind of plumbing and fixtures would be
>needed?      Also, can a pump be too big to run such a system.    I
>tried to run a wood splitter off of a large BeeGee pump hooked up to
>the belt pulley shaft on an AC WC tractor (came off of a Cat) but
>about all it did was heat up the oil and stall the tractor.  One guy
>told me the pump was "just too big."  ???