(b) At accessibility to the maker, to have auto equipped with braking system possibilities and this utilize a common diaphragm, the fresh new overall performance conditions specified inside the six(a) which have to be exposed to one solitary leaks-type of failure during the a familiar diaphragm can get alternatively become confronted by the amount of leakages-types of incapacity determined in 6.seven. 6(a) which pertain which have unmarried leaks-kind of failures other than disappointments within the a familiar diaphragm.
(c) In the option of producer, the fresh truck percentage of people agricultural item truck, big hauler truck, or pulpwood truck may qualify of § with the title rather than the standards of 6(a).
6.step 1 Fixed retardation force. With all most other brakes made inoperative, through the a fixed drawbar generate a forward otherwise rearward recommendations, the latest fixed retardation force developed by the employment of the fresh new parking brake system would be:
(a) Regarding an auto besides a truck-tractor that is armed with more a couple of axles, in a manner that this new quotient fixed retardation force/GAWR isn’t below 0.28 when it comes to axle besides good steerable front side shaft; and you may