How should downward deformation of the gooseneck bolster be measured?

The measurement of downward deformation of the gooseneck bolster should be taken from the interior, top face of the bottom side rail, as this provides the most accurate reference point for assessing the structural integrity and deformation of the gooseneck area. This specific measurement point allows for consistency when evaluating the condition across different trailers, as it is less likely to be influenced by external factors such as dirt or surface irregularities that may be present on the underside or other areas.

Measuring from the interior top face ensures that you are capturing the deformation related to the structural elements that bear the most load during operation. This method also prioritizes the area that is critical for maintaining alignment and strength, which can impact trailer performance and safety. By focusing on this specific measurement point, assessments of damage or wear can be standardized, leading to better maintenance decisions and enhanced safety protocols in handling and operating dry vans.