Measures rolling resistance to detect problems like dragging brakes or over-tightened end bearings.
Measures threshold apply pressure, the air pressure required to overcome rolling resistance to slow the wheels.
Measures brake force, applied at the tire.
While brake force is being measured, glad-hand pressure is also being recorded.
Measures weight of axle.
Stores all test results in the computer to allow extensive post-test analysis of the complete braking system to determine issues of brake timing, cracking pressures in valves, brake balance, out of stroke conditions, poor brake lining conditions, and more.
Prints data reports and graphs: Summaries on vehicle identification data, pass/fail graph displays points of failure, tabular print-outs on data acquired on each axle.