Another failure this fall before winterizing...another jack failure. The dang nut snapped right off when cracking it up. Scared the bejebus out of me.
Also not the set screw on the locking collar. Turns out these are rarely tight as shipped from Hensley and they refuse to put any sort of thread locker on. In fact, the replacement I received, the screw not even in all the way. It ready to fall out at any point during a road trip.
And thus I believe this little screw is at fault for all the jack failures I've had.
So I highly recommend pulling them or backing them out just enough to add blue thread locker and hand tightening them. Don't let these $.02 screws ruin a multi-thousand dollar road trip!