I have a screw jack on my 2012 cobra trailer that becomes very difficult to
operate after every 2 or 3 uses in order to jack up my ASW-27B for
disassembly. The glider is operated in a sandy environment and the screws
become dirty quickly. Anyone have any idea about how to avoid the
necessity for frequent cleaning. I have used hydraulic jacks in the past
but I got tired of them leaking and collapsing.

Thanks,

MC