SAE International

(R) Air Brake Actuator Test Procedure, Truck-Tractor, Bus, and Trailers
 N J1469

Annotation

This SAE Recommended Practice provides procedures and methods for testing service, spring applied parking, and combination brake actuators with respect to durability, function, and environmental performance. A minimum of six test units designated A, B, C, D, E, and F are to be used to perform all tests per 1.1 and 1.2

Test Procedures

Leak rate-parking and service chambers (Section 4)

Maximum release and hold-off pressure-parking chamber (Section 5)

Minimum Pressure Response - Service Chambers (Section 6)

Force output and stroke-parking and service chambers (Section 7)

Low temperature leakage (Artic option included) -parking and service chambers (Section 8)

Low temperature maximum release and hold-off pressure (Section 9)

Low temperature force output-parking chamber (Section 10)

Low temperature operational test-service chamber (Section 11)

Chamber volume- service chambers (Section 12)

Corrosion resistance-parking and service chamber (Section 13)

Mechanical back-off release mechanism (Section 14)

Elevated temperature cycle test-parking and service chambers (Section 15)

Cycle test-parking and service chambers (Section 16)