Axle Alignment Specifications

This Service Bulletin provides axle alignment specifications for a wide range of Freightliner trucks, covering various model lines and configurations. It includes specifications for Freightliner models such as 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. The bulletin aims to assist technicians and service professionals in accurately aligning axles on these trucks, ensuring proper vehicle handling, tire wear, and overall performance.

## Freightliner Truck Axle Alignment Specifications: Ensuring Optimal Performance and Safety Freightliner trucks, renowned for their durability and reliability, require precise axle alignment to achieve optimal performance and extend the lifespan of their components. These specifications, specific to each model, encompass a range of parameters including toe, camber, caster, and steering axis inclination (SAI). Proper alignment ensures even tire wear, reduces fuel consumption, enhances steering control, and contributes to overall vehicle stability. The diverse Freightliner lineup, encompassing models like the FLA COE, FLB COE, FLD Conventional, and the more recent Cascadia, each necessitate specific alignment settings. For instance, the FLA COE might require a different toe angle than the Cascadia due to variations in wheelbase, suspension design, and intended use. Similarly, Business Class models might have unique specifications to cater to their lighter-duty applications. These specifications are vital for aligning the wheels and axles, ensuring they are parallel to each other and perpendicular to the ground. Incorrect alignment can lead to premature tire wear, erratic steering, and even safety hazards. Maintaining the correct settings is vital for optimizing the performance and longevity of these heavy-duty trucks.