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by Passenger Service: State troopers ride-along with truckers in crash study

Hunter Engineering says its B400T heavy-duty brake tester can perform a complete brake performance test on multi-axle vehicles in a minute or less. The unit is a PC-based system that uses Hunter’s WinSI software to measure brake forces and vehicle weight at each wheel. To perform a test, a technician drives the vehicle onto the tester plates and applies the brakes. The precision load cells within the plates automatically measure a variety of brake performance conditions, which are then digitally transferred to the computer, analyzed, and displayed on the monitor in color-coded charts.

The B400T identifies many conditions that affect brake performance, including: adhesion; axle-to-axle imbalance; left-to-right imbalance; static weight, dynamic weight, and weight shift; rollover propensity; and parking or emergency brakes.

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