Posted by Bob in MN on August 14, 2010 at 13:06:57 from (98.132.195.22):
I"m setting up a JD backhoe to operate on an independent hyd. sys. rather than the tractors sys.
The operators manual that I have says: "Specifications are based on a job ready machine w/std. equipment and 2000 psi hyd. pressure."
Another test was done at 2250 PSI.
My question is for determining what size/rating bypass valve to use. What I"m finding at the local farm supply stores are preset valves opening at 2500 psi. Is this an average value for hyd. sys.?
JD indicated as tractors to use this attachment on are: 820, 830, 1020, 1520, 1530, 2020, 2030, 2630. Anyone know the working pressures on these tractors?
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