Brand new trailer test rig shown in the Profile step one is calibrated in conformity into the calibration shape shown inside Profile step 3

S6.1.10.2 The center of gravity level of one’s ballast towards the stacked control truck shall be lower than twenty-four ins above the the top of tractor’s 5th wheel.

The brake temperature is counted because of the plug-sorts of thermocouples installed from the approximate heart of facing duration and you will depth of the most greatly piled shoe or disk mat, you to per braking system, as the found from inside the Contour dos

S6.step 1.10.step three The fresh new control trailer possess one axle which have a great GAWR out-of 18,one hundred thousand pounds and you may a distance, mentioned about transverse centerline of your shaft with the centerline of your kingpin, out-of 258 ±six inches.

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S6.step 1.ten.cuatro The latest manage truck was piled with the intention that its shaft is stacked at cuatro,500 pounds and tractor was loaded so you’re able to its GVWR, loaded above the kingpin simply, for the tractor’s fifth controls modified therefore the load towards the for each and every axle measured at the tire-crushed screen was extremely nearly proportional towards axles’ respective GAWRs, instead of surpassing brand new GAWR of tractor’s axle otherwise axles otherwise control trailer’s shaft.

S6.step 1.eleven Special push requirements. A vehicle equipped with a keen interlacing shaft system or a front side controls push program that’s involved and you can disengaged from the driver is actually tested to your program disengaged.

S6.step one.12 Liftable axles. A car or truck which have an effective liftable axle try checked from the GVWR having the fresh liftable axle down and also at unloaded vehicles lbs toward liftable shaft upwards.

For the criteria from S5.3.step 3.step 1 and you can S5.step 3.cuatro.1, the pressure about truck take to rig tank was very first lay within a hundred psi having actuation evaluation and 95 psi to own release screening.

S6.step one.14 From inside the analysis the fresh new disaster brake out of towing automobile under S5.eight.3(a), the latest hose(s) are ventilated to the ambiance at any time for around 1 second and not more one minute up until the emergency prevent begins, while the auto are moving within speed from which the fresh new end is usually to be made and you will any guidelines manage into the towing automobile safety system is throughout the updates to supply sky and you can braking system manage signals to the vehicles getting towed. Zero braking system software program is created from the amount of time new line(s) are vented up until the crisis avoid begins and no tips guide operation of the parking brakes or towing vehicle safety program happens from the time the fresh new line(s) is ventilated up until the end is completed.

Each brand should, upon consult regarding National Roadway Tourist Shelter Management , render information about and that of conformity alternatives it’s picked having a specific auto or create/design

S6.1.fifteen 1st braking system temperatures. Unless if you don’t specified, the original braking system climate is for around 150 °F and never more 200 °F.

The next thermocouple may be strung early in the newest sample series in the event your lining wear is anticipated to reach an effective part inducing the earliest thermocouple to contact this new friction skin regarding an instrument or rotor. The following thermocouple is strung on a depth away from .080 inch and found inside step one inch circumferentially of the thermocouple installed at the .040 inches breadth. Having center grooved boots otherwise shields, thermocouples is hung within one-8th out of an inch to one-quarter regarding an inches of your groove and as near to one’s heart as possible.

S6.step one.17 Gang of compliance choices. In which brand choices are specified, the producer shall discover option by the point they certifies the vehicle and could maybe not thereafter see an alternative for the vehicle.

S6.2.step one The dynamometer inertia for every single controls matches the stream to your controls toward axle loaded so you’re able to its GAWR. To own a car which have a lot more GAWRs given for operation from the reduced rate, the fresh GAWR made use of is the fact specified getting a performance off 50 mph, or, within accessibility to the manufacturer, any speed more than fifty mph.