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SAE J1476 2008 Edition, October 1, 2008
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Parking Brake Structural Integrity Test Procedure Vehicles Over 4500 kg (10 000 lb) GVWR-Truck and Bus
Includes all amendments and changes through Reaffirmation Notice , November 2014
Page Count:5
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AIA/NAS Aerospace Standards
This SAE Recommended Practice establishes a method of evaluating the structural integrity of the parking brake system of all new trucks, buses, and combination vehicles designed for roadway use in the following classifications: TRACTOR, TRAILER, TRUCK, AND BUS: over 4500 kg (10 000 lb) GVWR.


The main purpose of the document is to evaluate the structural integrity of a vehicle's parking brake system. However, other areas, such as suspension and drivetrain system, may also be evaluated during the test, provided that the criteria and procedure detailed as follows are not modified in any way.

Types of Parking Brake Systems to be Evaluated

Manually Applied-Mechanically Held

Power Released-Mechanically Held

Power Applied-Mechanically Held