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System B400T for Heavy Duty
Measures Brake Balance on Multi-Axle Vehicles in 60 Seconds or Less

Hunter's B400T utilizes PC-based technology to measure braking forces for every brake on a vehicle: tandem-axle tractors; tractors and semi-trailers; buses; 2-axle vehicles, including passenger cars and light trucks.

Precision load cells automatically measure braking forces and dynamic weight. As each axle is tested, results are displayed on the color monitor. Results are automatically stored and can be printed out at the end of the test... all in 60 seconds or less!

Weight Shift During Braking

The B400T takes into account the rear-to-front weight shift that occurs during braking, resulting in a more accurate evaluation of brake system condition and emergency stopping ability than roller type testers.

Detailed Brake Analysis

Brake Balance Results Segments inside each "wheel" indicate braking force as a percent of weight; the more segments, the higher brake strength. For an "ideal" vehicle, all segments would be the same length. It's easy to see which brakes are doing their job. Segments are coded green for pass, red for fail. Arrows on each axle indicate side-to-side balance, with the green area indicating pull. Arrows below the wheels show adhesion utilization, a measure of braking effectiveness, color-coded for pass or fail.

Service Brake Results

This display provides raw brake force data. Curves plot braking force and dynamic weight. Color-coded bar graphs report the results. Green means the vehicle passes, red indicates a problem.

Static Weight Results

Static weighing is performed automatically as soon as the vehicle comes to rest. The display shows static weight for each wheel, total for each axle and total for vehicle, along with GAWR and GVWR. If an axle is overweight, the accompanying arrow will turn red. All axle weight limits are user programmable to accommodate different vehicle platforms.

Conclusions "Plain English" description of vehicle results are color-coded and may be printed. Green "Passed" is used for all tests that are OK. Red or yellow coded messages are more in-depth and indicate a problem. ...

for a Wide Range of Vehicles