Advice in Trailer Life's RV Clinic

I think the Dexter manual has always recommended inspecting the bearings every 12 mo or 12,000 miles. But it also described the process of pumping in grease to push out the old grease until new grease has displaced all the old grease and new grease can be seen coming out the front. But they have rewritten their on-line manual. It no longer describes pumping in grease, letting it push out the old grease, until you see new grease appear out the front. Now it describes inspecting the bearings (which assumes cleaning out the old grease) and after doing a bearing inspection, it does still say to pump in grease until you see new grease appear out the front. As opposed to hand packing the bearings.

But there are often things in the Trailer Life RV clinic that seems to go against conventional wisdom.