The History and Development of Minimum Performance Brake Criteria for Off-Highway Rubber Tired Vehicles

This report discusses two topics: the history and the development of the present off-highway minimum performance criteria for braking systems and the current activities of Subcommittee X - Vehicle Brakes - of the SAE Construction and Industrial Machinery Technical Committee.

The Subcommittee has currently been developing a revision to SAE J237, Minimum Performance Criteria for Braking Systems for Off-Highway, Rubber Tired Front End Loaders and Dozers. The proposed revised report is included in an appendix. When approved, similar revisions will be made to SAE J166, J236, and J319. The revisions cover failure of a component common to both service and emergency stopping systems, holding performance, system recovery, weighing accuracy, and failure of parts.

The background reasons for these revisions are described.