I used to build prototype hydraulic valves for a specialty military supplier back in the mid 1990's. We used to soak the seals in oil before installing them onto valves. If you want to use heat to soften up the wiper be sure you dont go to hot, I would think that 160-180F should be fine,(maybe heat the oil in a steel container) because the oil will be hot in the machine when running it. Also use a plastic install tool to make sure you dont tear the wiperseal. Try to stretch the wiperseal over a cone of some kind this should expand it enough for the install. Have fun.
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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