[astrungis]

After reading this thread, I decided to grease my bearing using the zerts on the hubs. I didn't use the leveling system to lift the whole trailer - I used a floor jack and a few blocks of wood behind each wheel and jacked each wheel up off the ground by an inch or so. The jack is underneath the axle where the leaf spring attach to it. The pressure from the jack compresses the leaf spring and lifts the wheel off the ground leaving the trailer and leveling system in place. Just chock the wheel on the opposite side and you be able to spin the wheel to grease it.