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SAE J360 2008 Edition, February 1, 2008
Truck and Bus Grade Parking Performance Test Procedure
Description / Abstract:
This SAE Recommended Practice establishes methods to determine
grade parking performance with respect to:
a. Ability of the parking brake system to lock the braked wheels.
b. The vehicle holding or sliding on the grade, fully loaded or unloaded.
c. Applied manual effort.
d. Unburnished or burnished brake lining friction conditions.
e. Down and up grade directions.
Purpose
This document establishes a uniform procedure for determining the parking performance on a grade by the parking brake systems of new vehicles over 4536 kg (10 000 lb) gross vehicle weight rating (GVWR) intended for roadway use.
a. Ability of the parking brake system to lock the braked wheels.
b. The vehicle holding or sliding on the grade, fully loaded or unloaded.
c. Applied manual effort.
d. Unburnished or burnished brake lining friction conditions.
e. Down and up grade directions.
Purpose
This document establishes a uniform procedure for determining the parking performance on a grade by the parking brake systems of new vehicles over 4536 kg (10 000 lb) gross vehicle weight rating (GVWR) intended for roadway use.
SAE J360 2008 Edition, February 1, 2008
Truck and Bus Grade Parking Performance Test Procedure