INSUFFICIENT GREASE WAS APPLIED TO THE TRAILER AXLE HUB INNER BEARING CAUSING THE BEARING TO OVERHEAT DURING TOW OPERATIONS. THE OVERHEATED BEARING CAN SEIZE TO THE AXLE SPINDLE CAUSING THE TRAILER AXLE HUB TO BREAK AT THE REAR SEAL FLANGE.
IMPROPER INSTALLATION OF ELECTRICAL WIRING TO THE EXTERIOR LIGHTS (BRAKE LIGHTS, RUNNING LIGHTS, AND TURN SIGNALS) OF THE TRAILER ALLOWS THE STEEL LIFTING CABLES USED TO RAISE AND LOWER THE FOLDING TOP TO RUB AGAINST THE ELECTRICAL WIRING WHENEVER THE TOP IS LOWERED OR RAISED.