Brand new truck try rig revealed when you look at the Profile step one are calibrated during the accordance into calibration curves shown into the Shape step 3

Brand new truck try rig revealed when you look at the Profile step one are calibrated during the accordance into calibration curves shown into the Shape step 3

S6.step 1.ten.2 The middle of the law of gravity peak of one’s ballast on the piled handle trailer will be less than twenty four ins above the the top of tractor’s 5th wheel.

The braking system weather is measured by the plug-kind of thermocouples installed regarding approximate heart of your facing size and you will width of the most extremely heavily piled shoe otherwise disc pad, that for every braking system, because shown inside the Figure dos

S6.step 1.ten.3 The newest control trailer enjoys just one axle having good GAWR off 18,100 weight and you may a distance, counted in the transverse centerline of the axle on the centerline of your kingpin, out of 258 ±6 in.

S6.step 1.ten.cuatro The brand new handle truck try loaded making sure that the axle are piled at the cuatro,five-hundred pounds and tractor is loaded in order to their GVWR, stacked over the kingpin only, to the tractor’s fifth controls modified so the load to the for each and every shaft counted at the tire-ground program is most nearly proportional toward axles’ particular GAWRs, without surpassing the fresh GAWR of tractor’s axle or axles or handle trailer’s shaft.

S6.1.11 Unique push criteria. A car or truck armed with an interlocking shaft system or a top wheel drive program which is engaged and disengaged from the rider is tested on program disengaged.

S6.step one.a dozen Liftable axles. An auto that have a beneficial liftable axle try checked out during the GVWR that have new liftable shaft down as well as unloaded vehicle weight into the liftable shaft upwards.

Towards requirements out of S5.step three.step 3.step 1 and you will S5.3.cuatro.step one, the pressure on truck take to rig tank are very first set during the one hundred psi for actuation evaluating and you can 95 psi to have launch tests.

S6.1.fourteen Inside assessment the new disaster brake out of towing car lower than S5.eight.3(a), the fresh new hose(s) try vented for the surroundings when no less than 1 next rather than over one-minute before the disaster prevent starts, as auto is swinging during the rates where this new prevent will be produced and you will people tips guide handle into the pulling auto defense method is throughout the standing to supply air and you may braking system handle signals to the vehicle becoming towed. No brake application is produced from the full time the newest line(s) is ventilated until the disaster stop starts without instructions process of one’s parking brake system otherwise towing auto security system takes place from the time the brand new range(s) are vented through to the avoid is completed.

Each name brand shall, up on consult throughout the Federal Highway Website visitors Coverage Management , give information regarding which of conformity selection it offers picked to have a particular car otherwise create/model

S6.1.15 First brake temperatures. Unless if you don’t specified, the first brake temperature is for around 150 °F rather than more than two hundred °F.

The next thermocouple could be hung at the beginning of the test sequence in case your liner don is anticipated to-arrive a great part inducing the earliest thermocouple to get hold of the rubbing skin of a musical instrument or rotor. The second thermocouple are going to be strung on a range out-of .080 inch and found in this 1 inch circumferentially of the thermocouple hung at faydalД± baДџlantД± the .040 inch breadth. For heart grooved sneakers or shields, thermocouples try strung within one-eighth off an inches to one-quarter from an inches of your own groove and also as next to the heart that you could.

S6.step one.17 Band of compliance selection. Where brand choices are specified, the manufacturer shall discover the choice once it certifies the auto and will perhaps not thereafter discover a different option getting the car.

S6.2.step one The latest dynamometer inertia each controls matches the brand new stream with the controls towards the axle loaded in order to the GAWR. Having a car or truck that have most GAWRs specified to possess procedure at the shorter performance, new GAWR utilized is the fact specified to own a speed out of fifty mph, otherwise, on accessibility to the producer, any price greater than fifty miles per hour.

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