School me on winch maintenance- had a great weekend!

Had both of my quads out on the trails this past weekend and we hit some deep mud and water. I don’t recall using my winch submerged, but no less, I’m curious if I should be doing some sort of maintenance on it.

Are we supposed to tear these apart and clean/lube the gears or what?

With that out of the way, I’m rather happy with these winches (3500 Max). I put a 30L battery in my quads and I’m positive the extra available power helped the performance considerably. At one point, I was pulling myself AND my friend out of a mud hole and the winch did it like a champ! Didn’t even use a snatch block- straight line pull on the first or second wrap. Couldn’t be happier. Did a TON of winching and my battery light only came on once.