Originally Posted by tonyz
I would say every couple of years have them broke down. I did mine last summer after 2 years and the pads where near shot. So, at minimum, do it before your long haul.
i would agree with this. i believe the manufacturer recommends annually but that seems too often for me.
i would not depend on the ezlube to purge contaminants from the hubs. tare them down, clean completely, inspect, and replace the seals.
i did mine last year and the bearings were still good. had 2 seals that were bad. the year before, i had rebraked it and seals were good...did not replace them. now, if i disturb them, i replace them.
some of the seals are very close. i would take the old bearing and seal with me when i bought one. i now carry a spare set of bearings and a seal with me. hope i never need it.
breaking it down also gives u a chance to inspect the shoes and the bolts that hold the back plate to the axle.
the manufacture says rotating while injecting grease isn't nescessary. i don't have a problem with doing it and actually like the idea. when i'm getting ready to leave on a trip, i'm not going to take the time to jack the trailer and pump a couple squirts of grease. i usually just pump a couple squirts in each and leave.
i'm not at all comfortable with pumping grease until fresh is seen and called it repack. i don't believe there is an easy substitute for tare down, clean, and repack.