SERVICE BRAKES, HYDRAULIC; TRAILER HITCHES
This Technical Service Bulletin provides an inspection guide and corrective actions for travel trailers produced during 2014 and 2015 that may experience degraded braking due to a sub-optimal ground through the ball connection when an optional anti sway hitch is installed. During the affected model years some Oliver models relied upon providing a ground to the electric braking system through the connection between the tow vehicle hitch and trailer frame. This usually provides sufficient grounding capacity for the brakes to operate normally, however, a better method of grounding the trailer would be to provide a grounding bond through the 7-pin ground wire to the trailer frame.