LCI electric tongue jack - fix that worked for me - some oil

This jack has had a problem with corrosion as the top does not seal well. My dealer suggested keeping it covered. I found a waterproof nylon small "duffel bag" type bag that fits great and has a drawstring. I had one on my last camper as a replacement for a year with no problem...luck. I like the smooth movement of this jack so with a little extra care hopefully no problem