Full Description

This SAE Recommended Practice establishes uniform test procedures for friction based parking brake components used in conjunction with hydraulic service braked vehicles with a gross vehicle weight rating greater than 4500 kg (10 000 lb). The components covered in this document are the primary actuation and the foundation park brake. Various peripheral devices such as application dashboard switches or indicators are not included. These test procedures include the following:

Brake Related Tests

Brake Functional Performance

Brake Dynamic Torque Performance

Brake Corrosion Resistance

Brake Endurance with Torque

Brake Endurance without Torque

Vibration Resistance

Brake Ultimate Static Load

Brake Lining Wear Adjuster Function

Actuation Related Tests

Mechanical Actuator Functional Performance

Mechanical Actuator Endurance

Mechanical Actuator Quick Release

Mechanical Actuator Ultimate Load

Spring Apply Actuator Functional Performance

Spring Apply Actuator Operating Temperature Range

Spring Apply Actuator Endurance

Spring Apply Actuator Corrosion Resistance

Spring Apply Actuator On-Off Switch

Spring Apply Actuator Vibration