Parking Brake Drawbar Pull Test Procedure - Truck and Bus

Scope:

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.

Rationale:

Added requirement for recording tire Static Loaded Radius (SLR) and to report drawbar peak force as a moving average.

AKA:
  • SAE J 1729
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