The follow discribes the error in the original engineering and travel instructions. The shower enclosure was designed for a house not a recreational vehicle. The curved sliding door weighs about 70 pounds. When closed or stored, the weight of the door is suspended by the 2 rollers from a single curved tube between the 2 fixed glass panels on each side. The shower is generally located above the rear drive axle. The issues became apparent after the warranty claims about rollers and cam adjustment constantly loosening and the top tube was bending downward from rough roads or potholes in the road. The suggested repair was to store the door in the open position above the fixed curved glass panel. When secured with upper and lower pins, the door now has the strength of a fixed panel to support the weight of the sliding door. Those of us that have this method of transit storage, have not had any issues with the shower. Enclosed are some photos of the pin locations.
Caution when drilling to avoid the tempered glass panels. Fred Brooks, retired luxury coach technician.