The 1080 and 1085 hydraulics are open center, 1100 series are all closed center, very similar to JD. The 1100 series uses an inlet screen before the charging pump, and a five micron filter between the charging and radial pumps. First models had a bypass valve in the five micron filter that would open and let unfiltered oil through when tractor was not serviced properly. There's a service bulletin to DISABLE that valve to force that final filter change when needed. Dad's 1100 hydraulics have never been apart in over 7000 hours use. IF the inlet screen is serviced as it should be, I doubt there would be trouble as some claim to have. Several 1100 series still in use were I live.
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Today's Featured Article - Talk of the Town: Winterizing Engines - To Drain or Not to Drain? - by Russ Berry. What is this strange attraction I have to equipment and machinery? How did I get this way? I came from the suburbs and own a small horse farm in rural Loudoun County, Virginia. You can call me a "weekend farmer." The local farmers do. Does it bother me? No. I am just happy to have their friendship. At least the word "farmer" is in my title. But what is the attraction? How can I explain the sensation and exhilaration I feel when I turn the key and hear the engine come to life (most
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