Hydraulic cylinder (hand-pump and jack) seal replace

It seems I've sinned and blown the seals of a reckoned-to-be

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I took the leaking cylinder to a small repair shop and asked him to identify and order the seal. I learned a lot in the process, including that the oddball seal length the aftermarket copy of a Porta Power needed wasn't available but I could re-machine the piston to accept a common one.

Your cylinder may need the shop's special tools, like spanner wrenches, cylinder hones and valve seat reamers.

Ordered it. Thanks for hint.

I learned quite a lot about hydraulic seals and seal types just reading the information about various seals available on the McMaster Carr website.

Thanks for hint - Rich S

Went to a local pub for a drink and 2-course meal, sitting in a quiet corner, and skim-read the book. Gives great overview and conveys the ideas of hydraulic systems. A hand-pump and a single-acting cylinder is much simpler than the level of this book, which is the likes of driving very heavy-duty rapid acting production equipment. However, getting the general ideas with "overshooting" the specific objective gives very welcome context. Also some of the equipment I have seen is explained by this book. So, again - many thanks for mentioning the book.

Went to a local pub for a drink and 2-course meal, sitting in a quiet corner, and skim-read the book. Gives great overview and conveys the ideas of hydraulic systems. A hand-pump and a single-acting cylinder is much simpler than the level of this book, which is the likes of driving very heavy-duty rapid acting production equipment. However, getting the general ideas with "overshooting" the specific objective gives very welcome context. Also some of the equipment I have seen is explained by this book. So, again - many thanks for mentioning the book.

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Manufacturers' application notes can be very helpful.