This is one of our hydraulic pistons that operates the "bucket" which provides reverse thrust for our jet drives. The first photo is the assembled part, while the bottom photo shows it disassembled for o-ring and seal replacement.


I've got the seal rebuild down to about 45 minutes. Any of the 12 or so seals can cause a leak of some sort, major or minor. We usually have to swap out one of the 9 in service with our fleet each season. This is the latest one to need a rebuild and now will be on the shelf for next season. (I hope.)



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