Description / Abstract:
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.
Purpose
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