Posted by Owen Aaland on March 03, 2009 at 23:22:39 from (65.165.246.54):
In Reply to: Farmall560 Hydraulics posted by David Kinnison on March 03, 2009 at 05:01:08:
Like Scott says.
The 560 uses a closed center hydraulic system with a constant displacement pump. There is an unloader valve that has to move to dump oil to the reservoir when there is no demand for hydraulics. The unloader valve also functions as the system relief valve. The flow of oil through the orifice is what controls the unloader valve. If it gets plugged or the screen so dirty that it does not allow enough oil through the system will stay on high pressure. Excessive wear in the auxiliary valve spool and body can also keep the system on high pressure. Check the orifice first.
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Today's Featured Article - The 8N and the Fox - by Zane Sherman. Dec. 13 1998, Renfroe, Alabama. Last niht I dreamed about the day that I plowed the field of about 10 acres over on what Jimmy and Dandy called the Ledbetter field. I was driving the 1948 8N Ford tractor that Jimmy bought in 48 new This was prebably in about 1951 and maybe even befor the house was built. This would have made me to be about16 years old and I drove the tractor for nothing and would have paid to drive it if I had had any money which I didn't, but neit
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