tst 9672

TS 9672 is a service standard concerned with rules and classification for competent services that carry out vehicle front geometry adjustment and wheel balancing. The title points to service providers working in two closely related maintenance areas that affect vehicle straight-line stability, steering response and tyre wear.

What front geometry and wheel balancing mean

In general technical terms, front geometry refers to alignment-related adjustments that influence how the wheels are positioned and how the vehicle tracks on the road. Wheel balancing addresses the distribution of mass in the rotating wheel-and-tyre assembly. The two operations solve different issues: one is linked to alignment and directional stability, the other to vibration and rotational balance.

How this standard frames the service

This document is about the competence and classification of service providers rather than about a physical product. The term competent service helps distinguish organisations that perform specific work with suitable technical capability, staffing and operating arrangements. Based on the title and available scope information, the standard establishes rules and a classification approach for this service field, but it does not here provide detailed methods, measurement limits or step-by-step test requirements.

• Focuses on maintenance services for vehicle front geometry and wheel balancing.
• Provides a framework for identifying and classifying competent service providers.
• Points to the kinds of technical work in which service quality is assessed.
• Brings together alignment, driving behaviour and tyre-life related service activities under one subject.