(b) On accessibility to the producer, to possess vehicle armed with brake assistance hence need a familiar diaphragm, the overall performance requirements specified within the 6(a) which have to be confronted by one solitary leakage-type of failure when you look at the a familiar diaphragm get as an alternative feel exposed to the degree of leakage-method of inability calculated for the six.seven. 6(a) hence apply having solitary leaks-method of downfalls apart from failures from inside the a common diaphragm.
(c) From the option of the manufacturer, the trailer portion of one agricultural commodity truck, heavy hauler trailer, or pulpwood truck can get meet the requirements from § associated with name instead of the standards out-of 6(a).
six.step 1 Fixed retardation push. With all most other brakes produced inoperative, during a fixed drawbar present an onward or rearward advice, new fixed retardation force created by using the fresh new vehicle parking brake system is:
(a) When it comes to a car other than a trailer-tractor which is equipped with more one or two axles, such that the fresh quotient fixed retardation push/GAWR is not less than 0.28 for the axle aside from a good steerable front axle; and
With parking brakes used, the automobile should are still stationary facing constant and you may facing down hill into a mellow, dry portland cement tangible roadway which have a great 20-% stages, each other
(b) In the case of a trailer-tractor that is equipped with more one or two axles, in a fashion that new quotient static retardation push/GVWR is not lower than 0.14.