This service bulletin provides detailed instructions on replacing bearing spacers in ConMet PreSet Steer Hubs, specifically models 33-28. It is applicable to a wide range of Freightliner trucks, including the FLA and FLB COE models, the FLD Conventional, Business Class, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and 108SD/114SD models. The bulletin offers comprehensive guidance on the replacement process, ensuring proper installation and maintenance of the bearing spacers.

## Bearing Spacer Replacement for ConMet PreSet Steer Hubs on Freightliner Trucks: Ensuring Smooth and Safe Operation Freightliner trucks, known for their durability and reliability, are ubiquitous on roads across the globe. Their diverse range of models, from the iconic Cascadia to the robust Coronado, serves a multitude of applications, from long-haul trucking to regional deliveries. At the heart of this reliability lies a complex system of components, including the steering hubs, which play a crucial role in ensuring smooth and safe vehicle operation. ConMet PreSet steer hubs are commonly found on Freightliner trucks, and their proper function is vital for accurate steering and optimal tire wear. These hubs incorporate a sophisticated system of bearings and spacers that absorb the stresses and vibrations generated during operation. Over time, these components can wear down, leading to increased friction, potential failures, and compromised steering performance. Replacing the bearing spacer in ConMet PreSet steer hubs on Freightliner trucks is a critical maintenance task that directly impacts the truck's safety and efficiency. Timely replacement ensures accurate steering response and reduces the risk of premature wear on other critical components, resulting in longer service life and fewer unexpected breakdowns. This replacement procedure is crucial for all Freightliner truck models, including the FLA COE, FLB COE, FLD Conventional, Business Class, FLC 112 Conventional, Century Class Conventional, Argosy COE, Cargo, Columbia, Coronado, Business Class M2, Cascadia, and 108SD/114SD, as well as other models equipped with ConMet PreSet steer hubs.