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I got the seals replaced in the two boom cylinders and replaced the rod and seals on the bucket cylinder. It was not such a bad job, the hardest part was just wrangling the cylinders around by myself. They are pretty heavy and breaking the piston bolts loose took some doing. 600 ft-lbs spec and...

I just stumbled on this article, nothing new, but you may find it helpful. It is for a Case 580 back hoe so pretty relevant. https://axleaddict.com/commercial-vehicles/How-To-Rebuild-Or-Repair-Tractor-Backhoe-Hydraulic-Cylinders

Over the weekend I got the bucket cylinder off and the gland nut removed. Do your self a favor and make sure you remove the 1/8" locking screw before you put any pressure on it. Mine was under the cylinder and I did not find it until it was too late. The head of the screw snapped off, I had to...

This may be a case of the blind leading the blind, but I am currently in the process of replacing the bucket rod, and the seals on the right boom cylinder. I have been breaking the gland nut free while the cylinder is still attached. You might want to get a big spanner wrench. Here is the link...