Recommended Practice for Braking, Stability, and Control Performance Test Procedure for Air-Brake-Equipped Truck-Tractors
- Ground Vehicle Standard
Scope - separated this document into the truck-tractor procedure
References - added the new separate procedure numbers and included other new references as appropriate including SAE J360 (Truck and Bus Grade Parking Performance Test Procedure) and SAE J1729 (Parking Brake Drawbar Pull Test Procedure.
Test Conditions - snub burnish conditioning procedure will be conducted with the transmission in gear. This was a procedure change. Included brake adjustment clarification and recommended intervals.
Test Sequence - this was revised to follow FMVSS 121 truck-tractor test sequence.
Test Procedures - included maximum braking speed test to the stability and controls test. An optional test was added to initiate additional stops at a fully exhausted reservoir pressure at or near 0 psi during the failed system reservoir stops.
Data Sheets - added the procedure changes and updates as appropriate for clarification.
Data Sets - Support Documents
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The Truck and Bus Brake Systems Committee of the Truck and Bus Brake and Stability Control Steering Committee is responsible for developing, reviewing, and approving recommended practices, standards, and information reports related to brake systems of trucks, tractor-trailer combinations and buses over 10,000 lbs (4500 Kg) GVWR designed primarily for highway use.
|ASTME1136||This document is not part of the subscrption.|
|ASTME1337||This document is not part of the subscrption.|
|FMVSS121||Air Brake Systems|
|J1626||This document is not part of the subscrption.|
|J1729_201910||Parking Brake Drawbar Pull Test Procedure - Truck and Bus|
|J2503||This document is not part of the subscrption.|
|J2503_201205||Drawbar Pull Performance Criteria|
|J293_201706||Truck and Bus Grade Parking Performance Requirements|
|J299||This document is not part of the subscrption.|
|J360_201106||Truck and Bus Grade Parking Performance Test Procedure|
|J360_202008||Truck and Bus Grade Parking Performance Test Procedure|
|J693||This document is not part of the subscrption.|
|J693_201106||Truck Overall Widths Across Dual Tires|
|J971||This document is not part of the subscrption.|