Posted by Geo-TH,In on January 23, 2016 at 09:49:56 from (172.78.51.213):
I had three hydraulic cylinders decided to leak just sitting in cold pole barn. I'm thinking it may be a cold weather shrinkage problem, O-rings shrank. One of the cylinders was difficult to get apart. Someone had turned the end too far and pulled the wire all the way inside. I drilled the hole out a little larger, then used a smaller bit and drilled the backside of wire so when I turned the end, the wire decided to come out, THANK GOD!
I made a spanner tool using an old plumbing wrench. I also use a brake hone to clean up the end of cylinder. I find it easier to leave cylinder on tractor, saves removing hoses, just pull the rod and piston out.
I've concluded, if a hydraulic cylinder doesn't leak today, just wait it will leak tomorrow. I think I've rebuilt atleast a dozen so far.
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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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