Just like any mechanical jack screw device it will eventually need attention. Do you all remember what happened to an Alaskan airliner? They use a jack screw for tail trim and if it is not lubed correctly and it binds?...well a fail is not in my vocab....I'm not so happy with Happi Jack as they should have a more complete maintenance section to advise the consumer what can happen to their jack product and show everyone how to properly lube the jack screw. A partial problem is that the drains are not long enough from TC builders to wick the water further away from the top of the jack itself. You have seen the rust damage right?....MMM? Did you see the TC that fell over from a jack fail? Just saying that you have to be on it and watch for this stuff... I mean it could be down right dangerous. A TC that weighs in at almost 4500 pounds and your jacks fail trying to take it off the truck? Yeah walking a thin line here....that is why I did what I could to help....And I hope the thread will keep others informed when the questions come in on how to keep them working. I would not skimp at the first hint of a binding jack....take it apart,clean,inspect,look for bearing damage,re-lube if all is well. Good luck everyone and be safe!