How do I change the piston seal on a hydraulic ram (on a 15 ton JCB)?

Question

Ok, so the simple "unbolt the rod end plate, slide out the ram and replace the seal" isnt quite what I'm looking for.

The ram is on a JCB excavator and holds probably 10 or 20 litres of fluid (which I dont want to just throw on the floor), also its 15 feet up in the air.

What I hope you will be able to tell me is method, like:
 1 disconnect hydraulic couplings at the piston (plug pipe to digger unit.
 2 connect manual hyraulic pump to expel fluid.
 3 remove clevis pins...
 etc. etc
 how to bleed (if necesary)
remember this thing is big, heavy and not easy to get at.

Anonymous · Accepted Answer

well you pretty much either going to have to manhandle it or used something as big to get it down to the ground taking it apart is about what you think not really much to any of them but the size..... but once you get the thing off just what the order the seals come out and pretty much replace the same way sorry 
 replacing the seals is not hard its get it where you can work on it.... man ive done a few when i was logging and they all about the same will be o rings and packing seals.... im sure you can do it but get it on the ground

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How do I change the piston seal on a hydraulic ram (on a 15 ton JCB)?

1 Answer