2017 Grand Design Momentum Brakes Problems

“I purchased a new Grand Design Momentum 350m at holiday world katy, texas. After taking delivery of the camping trailer & checking hook-up to truck, lights & brakes in the parking lot, I towed the 350m about 50 miles across houston. I was quite concerned with the poor braking quality of the camping trailer, even after increasing the truck brake controller gain to 9.5 (of possible 10). I thought maybe the brakes needed more 'break-in time' so a couple of days later I slowly towed the camping trailer 400 miles to my home in s. Texas. …”

“The brake assemblies manufactured by lippert components inc on this rv and many other rv's have an issue known by the maufacturer related to axle grease leaking past the inner lip seal. The excess leaking grease contaminates the brake pad and drum contact surfaces resulting in severly diminished braking ability, which could lead to an accident in emergency stopping situations.”

“The curb side electric drum brakes on both axles of our tandem axle fifth wheel rv are greased and have failed. The root cause seems to be the failure of the double lip inner grease seal. It allows grease into the brake assembly where it is flung about saturating the shoes and splattering on friction surfaces. The attached pictures show the shoes and electromagnets are covered in grease as is the wheel hub, armature and miscellaneous brake components. …”

“Leaf springs broken, cutting wire to electric trailer brakes. Two leaf spring failures, one at 11 months since purchase, second failure at 13 months. Both failures while moving.”

“The wiring for the electric trailer brakes are not in any protective cover and are in direct contact with the suspension, free to move and chafe. When any of the 12 volt power wires rubs through and the brakes are applied it will create a dead short, blowing the fuse in the tow vehicle and leaving the driver with a 15,500 pound trailer with no brakes to aid in stopping. The attached pictures are of the drivers side.”