Hey Pat. As a Disclaimer, stating what I do is by NO means a suggestion to others on how they should maintain their trailers. If in doubt, go by the manufacturer's recommendation.
But for me? I've been around mechanics (am a former machinist) ALL my life. Keep in mind, my Scamp
13' weighs only 1800lbs on a 2200 lb rated axle
and I do NOT load it down traveling. When I'm not traveling, I keep my Scamp
off the ground on jacks, spin the wheels regularly year-round. I take my Scamp
out in the spring and pull for a min. 15-20 miles at apx 65 mph steady. I have an exit ramp on a 4-lane where I pull off....get out and check the temps. I do NOT use my trailer brakes when stopping to check the hubs as you WILL get a higher reading!! And this can throw you for a loop! I also check for "play" by placing my hands one on each side of the wheel and try to shake it back and forth. Vigilance is EVERYTHING on anything/any vehicle.
My hubs still run the same temps as when the Scamp was brand new in 2010 and 10000 miles ago from Scamp. I did adjust my brakes last year.
Again, this is just MY opinion and I dont recommend it for others. But do you pull the front wheels (or rear wheels on front wheel drive) vehicles and check the bearings every year regardless of the few or many miles you put on it?? That's basically what the axle
makers are saying.
I'm not saying whether to grease through the EZ Lube regularly or not. Just dont know without thousands of miles of tests whether what is 100% right or wrong. Many feel to pull, clean, inspect, replace, repack their bearings EVERY year. I do not and will not unless I have a trailer that I KNOW is running borderline. If I have that trailer, I dont want it for long. Mine has built-in safety margins on both the axle and tires
as you can see. My tires
are rated at 1326 each. I have apx 900 at full load MAX!
Good luck and do you what you feel you should do.... I've seen/heard of some doing the maintenance job, and they get the bearings too tight going back together and REALLY have trouble. So, regardless..... KEEP A WATCH ON YOUR HUB TEMPS AT ALL TIMES!! I spot check mine at every fill-up.