I started by fitting a dual acting hydraulic power unit that runs from 24v and also has a manual pump, I replaced all the pipework to the ram for new. The unit seemed to move too much fluid and really whipped the cab up and down far too fast, after fitting hydraulic restrictors it is now nicely under control.
Of course i hope i will never have to lift the cab, but if i do at least i wont be knackered after it !!
This is the old pump system