Posted by Hawk Driver on December 29, 2012 at 04:42:31 from (188.8.131.52):
I have a JD 620 and the 3 pt operates okay with no weight on it, but put a few hundered pounds on it and it will take hi rpm to raise. Lowers just fine and hold itself well when tractor is off, even with weight on it. Hyd levels and pressurs are okay and the hyd remotes work okay (I have a JD 45 loader on the tractor and plenty of lift capacity with it). Is there an adjustment to correct this, or am I looking at a hyd relief valve issue?
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