Posted by Bobl1958 on October 02, 2012 at 12:58:00 from (68.98.205.31):
Posted on Using Your Tractor as well, but just wondering on the hydraulics on this JD 1560 drill and my White 2-135 tractor. The tractor has closed center hyds. The drill needs down pressure. The drill comes as a closed center system, but has an optional valve that can change from open center to closed center. If I understand right, I need to have it on closed center and then lock my remote lever forward (down)to keep the oil flowing through the drill hyd system and keep down pressure on the openers, etc. My problem is that it seems like when I hold the remote lever in the tractor forward, the hyd system seems to be growling, like I need to release the lever. I may be dreaming, but it sure seems like it. I don't want to burn the pump up or anything. Any suggestions? Also, the hyd pressure gauge has been changed out from the original gauge that has green, yellow, and red pressure zones, to one with psi. Any idea where the psi might be in normal conditions? Just an approximate to have something to go by. The JD750 drill I traded in had an entirely different set up. Thanks for any help. Bob
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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