I'd go for it too; you already have the concepts of electrical energy, etc., and reading those across to the mechanical forms of transmission will be reasonably easy, ie pressure vs. volts, friction forces vs. ohms, flow rate vs. amperes, valve control vs. switchgear etc. As growler says, experienced folk will be only too pleased to share knowledge, and once you have it, that's more security for the future.
Don't forget you will be taking your knowledge in, so it won't be all a one-way-street.
Best of luck,
Alan
