(a) At car increase more than 20 mph, any wheel toward a nonsteerable axle other than both rearmost nonliftable, nonsteerable axles will get lock-up, for all the stage. step three.1(b).
(b) During the vehicles rate above 20 miles per hour, that controls toward any axle or one or two rims for the one tandem may lock-up your stage.
(c) In the vehicles increase above 20 miles per hour, people controls perhaps not allowed to protected S5.3.1 (a) otherwise (b) could possibly get lock up many times, with every lockup happening having a period of you to 2nd otherwise reduced.
S5.step 3.step 1.step one Prevent the vehicles from 60 mph towards the a facial skin which have a maximum rubbing coefficient off 0.nine towards the car piled the following:
(a) Loaded to their GVWR and so the weight on every shaft, measured within tire-floor user interface, is most nearly proportional with the axles’ respective GAWRs, without exceeding new GAWR of any shaft.
An automible designated so you’re able to pull some other vehicle armed with sky brakes should meet up with the above launch time requirements having a great 50-cubic-inch take to tank attached to the manage range yields coupling
(b) Regarding truck tractor merely configuration as well as around five hundred lbs. otherwise, at the manufacturer’s choice, within their unloaded weight plus as much as 500 pounds. (as well as driver and you can instrumentation) and you may together with only an additional step one,000 weight. to possess an excellent move bar structure with the car, and you can
(c) On its unloaded auto pounds (apart from truck tractors) plus to five hundred weight. (together with driver and you will instrumentation) or, at the manufacturer’s alternative, from the their unloaded lbs including around 500 lbs. (including driver and you will instrumentation) including only an extra 1,100000 pounds. to own an excellent roll club structure on vehicles.
S5.3.3.1(a) With a first service tank system sky tension regarding a hundred psi, the atmosphere tension within the for every brake chamber should, when counted in the basic movement of your solution braking system control, arrive at sixty psi from inside the only 0.forty-five 2nd regarding autos and you can vehicles, 0.50 2nd in the example of trailers, other than trailer converter dollies, designed to tow several other vehicle equipped with air brakes, 0.55 second in the example of truck converter dollies, and you can 0.sixty 2nd in the case of trailers except that trailers customized in order to tow other car armed with sky brakes. A vehicle made to tow another car armed with heavens brakes will meet up with the above actuation time demands that have an excellent 50-cubic-inches test tank linked to the manage line production coupling. A truck, plus a trailer converter dolly, shall meet up with the significantly more than actuation go out requisite with its handle line type in coupling linked to the sample rig revealed within the Contour step one.
If the price doable in 2 miles try less than 60 mph, the auto should prevent away from a speed within the Dining table II one to are four to 8 mph less than the Extra resources rate possible in several miles
(b) Having a vehicle that is designed to tow various other vehicle furnished with sky brake system, the pressure throughout the 50-cubic-inches sample tank labeled inside S5.step three.3.1(a) shall, when mentioned on very first path of one’s provider brake manage, reach 60 psi maybe not after as compared to date the quickest braking system chamber for the car is at sixty psi otherwise, during the accessibility to the manufacturer, into the not more than 0.thirty-five 2nd regarding vehicles and you will busses, 0.55 2nd regarding trailer converter dollies, and you may 0.50 second in the case of trailers apart from trailer converter dollies.
S5.3.4.1(a) Having a primary solution brake chamber heavens tension away from 95 psi, the air stress from inside the per brake chamber will, when counted throughout the first course of provider braking system manage, slide to 5 psi into the only 0.55 second in the example of cars and busses; step one.00 next in the example of trailers, aside from trailer converter dollies, built to tow other vehicle armed with sky brakes; 1.10 seconds in the case of trailer converter dollies; and you will step 1.20 seconds when it comes to trailers other than trailers designed so you’re able to pull other vehicle armed with air brakes. A trailer, as well as a trailer converter dolly, shall meet up with the a lot more than discharge time requirements along with its handle line type in coupling attached to the shot rig shown for the Profile 1.