Never said you are or were an idiot.Why so touchy? Myself and others here are trying to keep this nice old family heirloom running strong & reliable for the next generation. If you don't like what I'm saying listen to txjim. He and myself may like to give each other a jab or two or three or more, but he is rarely wrong.
It's just that if these hydraulic systems go too far it's a lot of time and money to repair a 36+ year old tractor. See it at dealership, consignment auction sales and here on this site all too often. Without any "warning" somebody's tractor has grey material in the screen & filter. Then the filter emergency bypass valve opens to provide some steering & brakes for driver safety. Now the hydraulic system is filled with abrasive metal particles. If the trans screen has been plugged once recently and perhaps years ago. The friction material must be getting thin and weak. You may well get away with just clean trans oil and run for another 36 years. To the other extreme of a front pump, trans pump, remove and flush the oil cooler ad oil tank.Disassemble and flush the power steering. Disassemble and flush the brake cylinders. Replace wheel brake friction material and disks. Replace pto brake. Replace pto clutch. Take the trans apart and flush everything. Take all hydraulic lines and valves off and flush. Then rebuild what is scored. Odds are your tractor will be somewhere in between the two extremes. b.t.w. If the coolant hasn't been changed for a while. The corrosion inhibiter's will be depleted. Deere sells a strip dip test kit for a few bucks to test the quality. If the coolant corrosion inhibiter's are depleted for a few years. The engine's wet sleeves tend to leak due to cavitation pin holes.
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Today's Featured Article - Tractor Hydraulics - The Basics - by Curtis Von Fange. Hydraulics was one of the greatest inventions for helping man compound the work he can do. It’s amazing how a little floor jack can lift tons and tons of weight with just the flick of a handle. What’s even more amazing is that all the principals of hydraulic theory can be wrapped up in such a small package. This same package applies to any hydraulic system from the largest bulldozer to the oldest and smallest tractor. This short series will take a look at the basic layout of a simple hydraul
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