I've been removed from the direct management of a fleet for several years, but the issue I want to discuss hasn't changed for at least 40 years from an overall conceptual engineering viewpoint and application.
Back in my fleet management days, the highest and most prolific trailer cost-per-mile item that weighted our overall trailer maintenance cost was not brakes, but the maintenance of roll-up doors. This component, although probably not considered by many a major component, ranked clearly as the number one trailer cost in the LTL transportation fleet that I managed. By the way, we had over 17,000 trailers so my data was accurately assessed and clear. Over the years, prior to and subsequent to my exit from this direct management position, I've heard the same comments from fleet manager's year in and year out.... Read More