Quote:
Originally Posted by JRTJH
If you're "betting your life" on the assumption that the axles/bearings were properly assembled during manufacturing, then I'd say after the first towing season...
On the other hand, there have been numerous "factory recalls" for improperly greased bearings from Dexter, Al-Ko and Lippert, so you may, right now, be "running on ungreased/under greased bearings" and/or leaking rear seals that were improperly installed or torn during assembly....
Essentially, until you (or a competent mechanic) disassembles and checks the components, you are "towing with not much more than faith in the minimum wage employee who put those axles together on an assembly line".... Quite possibly in China.....
If you trust the factory workmanship, do it later, if you're unsure of what's actually "in the axles" do it sooner rather than later.....
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DO NOT use the EZ lube system!!!! It's the grease zerks on the ends of the spindles which allow you to pump grease through the bearings.
Remove & HAND PACK only & replace the seals.
Even following the manufacturer recommended procedure you can/will contaminate the brakes when the cheap factory seals bypass filling the drums with grease, greasing brake shoes it not recommended.
There's a handful of folks that swear by the EZ lube system, but there's a truckload of us that have had to replace all 4 brake assemblies that swear at the EZ lube.
If it's a new trailer, or new to you, I'd recommend doing it the 1st chance you have just for piece of mind.