Ok I have a badly twisted one that required my hammering it real hard to get it to retract far enough to drive away when it happened & it still sticking out a about a foot. & so now I don't trust i...
There is a good thread on here about pulling apart the jacks to clean and lubricate them. Look in Truck Camper university at top of TC forums. scroll down to camper jacks. There is a very good post by KKELLER14K lots of pictures and well explained. This is for Happijac jacks. Just noticed there is also one for Atwood jacks. I haven't read it since I have Happijacs. Brian