Posted by JD Seller on February 27, 2018 at 19:00:19 from (208.126.196.24):
In Reply to: Planter hydraulics posted by caterpillar guy on February 27, 2018 at 12:26:19:
Your correct in that pressure only effects lifting force butttt you need flow with pressure to lift. I have seen a lot of IH tractors lose pressure when you demand flow. The newer tractors operate at 2750 PSI and up the old 2250 PSI standard is not enough anymore. Also when I check older tractors very few of them are even at 2250 PSI anymore. Lots of 1500-1800 PSI when hot and with a flow demand.
The 66 series IH tractors had lots of things that were good about them but the hydraulics was not one of them. The double pump system was designed for operating a cylinder with 8-10 inches of stroke. Now put it on a planter that may need to fill 4-8 cylinders with a demand of 2500 PSI of so and they do not do well.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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