step one.10.dos The middle of gravity level of one’s ballast with the piled manage truck is less than 24 inches over the the top of tractor’s 5th controls.
step 1.ten.step 3 The control trailer has just one shaft which have a good GAWR out of 18,one hundred thousand lbs and you may a range, counted regarding transverse centerline of your own axle with the centerline of kingpin, out-of 258 ±6 inches.
step 1.10.cuatro The fresh new handle truck was loaded in order that the shaft is actually loaded within 4,500 pounds as well as the tractor is actually piled so you’re able to the GVWR, loaded above the kingpin merely, on the tractor’s 5th controls adjusted so the load into the for each shaft measured at tire-surface software is most nearly proportional to your axles’ particular GAWRs, instead of surpassing this new GAWR of your tractor’s shaft otherwise axles otherwise control trailer’s shaft.
1.11 Special drive criteria. A vehicle armed with an interlocking shaft system or a top wheel drive system that is engaged and you may disengaged by rider try checked out into program disengaged.
step one.a dozen Liftable axles. A car or truck that have a liftable axle try tested during the GVWR with the fresh liftable axle down and also at unloaded auto weight into the liftable axle upwards.
Toward conditions off S5.step three.step three.1 and you can S5.3.cuatro.1, pressure in the truck sample rig tank is actually 1st lay during the a hundred psi getting actuation evaluation and you will 95 psi getting discharge evaluation.
1.fourteen Inside evaluation the brand new disaster brake off pulling car less than S5.7.3(a), the fresh hose(s) is actually vented into the surroundings any time no less than step one next and never over one minute through to the disaster avoid begins, just like the vehicle are swinging during the speed of which this new avoid is usually to be generated and you can one guidelines control into the pulling vehicles shelter method is free chat room greek throughout the reputation to supply air and you can brake manage signals to the car being towed. Zero braking system software is made from committed the fresh line(s) was vented till the crisis avoid initiate and no manual procedure of your vehicle parking brake system or towing vehicle cover program happens from the time this new range(s) is actually ventilated before avoid is completed.
1.fifteen Very first braking system temperatures. Until if you don’t specified, the original braking system climate is not less than 150 °F rather than more 2 hundred °F.
S6
Brand new braking system climate is counted by the connect-sorts of thermocouples strung regarding calculate cardiovascular system of against duration and you may width of the very most greatly stacked shoe or disk pad, one to for every braking system, because the shown for the Shape dos. Another thermocouple should be installed within a degree out-of .080 inch and you will discovered in this step one inch circumferentially of the thermocouple installed within .040 inch depth. To possess center grooved boots or shields, thermocouples try hung in a single-8th away from an inch to 1-one-fourth of an inches of the groove and also as next to the heart as you are able to.
A moment thermocouple could be strung early in the fresh new test succession whether your liner don is anticipated to reach good area evoking the first thermocouple to make contact with the new rubbing body off an instrument or rotor
step one.17 Selection of compliance options. In which brand choices are given, producer should discover solution by the time they certifies the car that can not thereafter come across a different option to have the automobile. For every single brand shall, through to consult about National Path Travelers Protection Management , promote facts about which of one’s compliance solutions it’s chosen to possess a specific automobile or generate/design.
dos.step 1 The brand new dynamometer inertia for every single wheel is equivalent to the newest load towards the wheel with the shaft loaded so you’re able to the GAWR. Having a vehicle that have extra GAWRs specified to possess operation on quicker increase, the latest GAWR put is that given having an increase of 50 mph, otherwise, at option of the producer, any price greater than 50 miles per hour.
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