The newest group of decelerations will be conducted below:

The newest group of decelerations will be conducted below:

cuatro.dos Braking system strength. When attached to a keen inertia dynamometer, for every brake would be capable of making 10 consecutive decelerations during the the typical rate from nine f.p.s.p.s. out-of fifty m.p.h. so you’re able to fifteen meters.p.h., in the equal menstruation from 72 seconds, and might be with the capacity of decelerating to help you a halt regarding 20 meters.p.h. within the common deceleration rates of 14 f.p.s.p.s. 1 minute after the tenth deceleration.

4.2.step one With an initial brake temperature ranging from 150 °F. and you can 2 hundred °F. to your earliest braking system application, and musical instrument otherwise disk spinning during the a performance comparable to fifty yards.p.h., implement the brand new brake and you may decrease from the the average deceleration rate of nine f.p.s.p.s. to 15 m.p.h. Upon getting together with fifteen yards.p.h., accelerate so you’re able to 50 yards the perfect match nazwa uЕјytkownika.p.h. and apply this new brake for another date 72 seconds just after the start of the initial app. Repeat this new period up until 10 decelerations have been made. The service range air tension shall maybe not exceed one hundred psi while in the people deceleration.

cuatro.dos.2 One minute following the avoid of last deceleration expected by the cuatro.dos.step one and with the guitar otherwise disc spinning during the an increase regarding 20 m.p.h., slow down to a halt on an average deceleration price out of fourteen f.p.s.p.s.

But as the offered inside 4

cuatro.step 3 Braking system data recovery. 3(a) and you can (b), undertaking a few minutes shortly after completing the new tests necessary for 4.dos, a automobile’s braking system are capable of making 20 straight closes away from 31 mph within the typical deceleration price off a dozen f.p.s.p.s., in the equivalent periods of one minute measured right away away from for every brake application. This service membership line sky tension must to get a speed off 12 f.p.s.p.s. will likely be not more than 85 lb/in two , and not below 20lb/in 2 having a braking system perhaps not susceptible to the control of an antilock system, or 12 lb/in two having a braking system susceptible to the fresh new power over an enthusiastic antilock program.

(b) Notwithstanding cuatro.3, none top axle brake from a shuttle otherwise a truck other than a trailer-tractor was subject to the requirement established from inside the 4.step three prohibiting this service membership line air tension away from are below 20 lb/in 2 having a brake maybe not susceptible to the new control over a keen antilock system otherwise a dozen lb/in 2 having a brake susceptible to the command over an antilock system.

5.step one Antilock system dysfunction. With the a truck tractor are designed to your or immediately following February step 1, 1997, that is armed with an enthusiastic antilock brakes and you can an individual tool auto are built to your or after February 1, 1998, which is equipped with an antilock brake system, a malfunction you to definitely impacts the new generation or transmission from impulse or manage indicators of any part of the antilock program will perhaps not help the actuation and you may release days of this service membership brakes.

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5.2 Antilock system stamina — trailers. Towards a truck (plus a truck converter dolly) are created into or immediately after March step 1, 1998, which is armed with an enthusiastic antilock system that really needs energy having procedure, the benefit can be extracted from brand new towing auto because of you to or more electronic circuits which give carried on fuel whenever pushed car’s ignition (start) option is within the “on” (“run”) reputation. Brand new antilock program will instantly found electricity on stoplamp routine, if the number one circuit or circuits are not working. For every single truck (and additionally a truck converter dolly) are produced toward or just after February step one, 1998, which is equipped to tow some other air-braked vehicle are going to be armed with no less than one circuits and therefore provide persisted ability to new antilock program towards vehicle(s) it tows. Such as circuits are enough to let the antilock system to the for each towed vehicles becoming fully operable.

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