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SAE J1729

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SAE J1729 2008 Edition, February 1, 2008 Parking Brake Drawbar Pull Test Procedure—Truck and Bus
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Description / Abstract: This SAE Recommended Practice provides a test method and instructions for measuring performance of parking brakes on air- or hydraulic-braked vehicles equipped with in-wheel or drive-line parking brakes. This procedure applies to truck-tractors, trailers, trucks and buses.

Purpose

This document establishes a uniform procedure for determining retardation force capability of the parking brakes of new truck-tractors, trailers, trucks and buses.