Stabiliser screwjacks

Admonfr
Admonfr Forum Participant Posts: 6
edited June 2013 in Caravans #1

Perhaps an aviation background has made me over cautious, you are tought never to grease exposed screwjacks as they will pick up grit & dust and the mixture makes a wlnderful gringing paste. So I use WD40 on mine but it needs applying almost every trip. 
Has anyone any bright suggestions?