06 May This new truck test rig found in Figure step one try calibrated for the conformity into the calibration shape shown in the Contour step three
S6.step 1.10.dos The midst of gravity peak of your own ballast toward loaded manage truck is less than twenty four inches over the the top tractor’s fifth wheel.
S6.step one.ten.step three The handle trailer has a single axle which have a good GAWR regarding 18,100000 lbs and you will a distance, mentioned throughout the transverse centerline of one’s shaft to your centerline of kingpin, of 258 ±six in.
S6.step one.10.cuatro The fresh handle truck are piled so that their axle was loaded within 4,five hundred pounds and tractor is actually loaded to its GVWR, loaded above the kingpin just, to your tractor’s fifth wheel modified and so the weight toward per axle counted during the tire-ground screen try extremely nearly proportional for the axles’ particular GAWRs, in place of exceeding the new GAWR of your tractor’s axle otherwise axles or manage trailer’s axle.
S6.step 1.11 Special drive conditions. An automible armed with an enthusiastic interlacing axle program or a front side wheel drive system that is engaged and you will disengaged by the driver are looked at for the system disengaged.
The next thermocouple should be hung in the a range regarding
S6.step one.12 Liftable axles. An automobile with a beneficial liftable shaft are looked at at the GVWR having the newest liftable shaft off at unloaded vehicle lbs towards the liftable shaft upwards.
Into the standards from S5.step 3.step three.step one and you can S5.step 3.cuatro.step one, the stress about trailer try rig tank try initially place at 100 psi having actuation evaluation and you will 95 psi to have discharge assessment.
S6.1.fourteen From inside the comparison the fresh disaster brake off towing car lower than S5.seven.3(a), the latest hose(s) are ventilated into atmosphere any time for around step 1 2nd and never more 1 minute until the crisis end initiate, since auto is moving on price of which the fresh new end is to be generated and you may any guidelines control for the pulling car safety method is in the position to provide air and you may braking system manage signals towards the car being towed. Zero brake application is created from the full time the newest range(s) try vented through to the emergency end initiate and no manual procedure of parking brake system or towing automobile safeguards program happens since that time the new line(s) is actually vented before end is done.
Brand new brake temperature is mentioned of the connect-particular thermocouples installed regarding estimate center of your against duration and thickness of the most heavily loaded shoe or disc pad, one to each braking system, as the shown inside Shape dos
S6.1.fifteen First braking system heat. Until otherwise specified, the initial braking system weather is no less than 150 °F rather than over 2 hundred °F.
An additional thermocouple may be hung early in the fresh take to sequence if the liner wear is expected to arrive a beneficial section inducing the earliest thermocouple to make contact with the fresh friction epidermis away from a guitar otherwise rotor. 080 inches and you will discover within step 1 inch circumferentially of thermocouple strung at the .040 inch breadth. For cardiovascular system grooved sneakers or shields, thermocouples is hung within one-8th out of an inch to a single-one-fourth regarding an inch of your groove so when next to the center as you are able to.
S6.step one.17 Band of conformity possibilities. In which brand name choices are specified, producer shall get the alternative by the point they certifies the auto and can even maybe not thereafter pick an alternative to possess the auto. Per brand will, through to demand on Federal Path Traffic Shelter Management , offer facts about and therefore of conformity choice this has chosen having a specific car otherwise create/design.
S6.dos.1 The newest dynamometer inertia for each and every wheel matches the load towards wheel to your shaft loaded in order to the GAWR. For an auto with most GAWRs given to possess process in the shorter speed, the fresh new GAWR put is the fact given to have a performance off 50 miles per hour, or, within option of the company, one price more than fifty mph.