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Andy-- You mentioned you have your jacks extended quite a bit in an earlier post here. While at one of the National Fall Rally in Goshen, Indiana and while at one of the Lippert sessions we were told not to extend the jacks or rams over eleven inches. This creates unstableness of the unit and can damage the gaskets on the ram. They recommended putting blocks under the legs to shorten the length of extension. I've built myself some blocks out of treated decking. I've go two high, three high and four high blocks. I have four of the two high ones so I can add them to the others if need to shorten the ram extension. They also recommended taking some hydraulic fluid on a rag and wiping down the rams every so to keep them clean and especially before retracting them.
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