Axle maintenance question

[lightning79]

Hello friends,

Quick question about axle maintenance. In the middle of each wheel, I have a little rubber seal that says "Dexter EZ Lube" on it, and a small grease fitting underneath. The trailer has about 6000 km on it, and the grease around the fitting smelled like normal grease, and was a charcoal colour, no burnt smell or anything.

How often should I pump some grease into each wheel?

This one may sound dumb: would pumping fresh grease into each wheel fitting be the only thing I should be doing? Or should I have someone take the wheels off anyway, inspect, check, look, etc? I'm also thinking of the brakes.

Thanks!

Kevin

Kevin