(b) At accessibility to the manufacturer, for auto equipped with braking system solutions and that use a familiar diaphragm, the fresh performance conditions specified from inside the 6(a) and that should be met with any unmarried leaks-particular inability in a familiar diaphragm may as an alternative feel confronted by the level of leakage-kind of inability calculated from inside the 6.eight. 6(a) and this incorporate having single leakages-particular problems except that downfalls from inside the a familiar diaphragm.
(c) During the option of the producer, this new truck portion of people agricultural commodity truck, hefty hauler truck, or pulpwood trailer get be considered regarding § in the identity instead of the criteria out-of 6(a).
6.1 Fixed retardation force. With all almost every other brake system generated inoperative, through the a static drawbar make a forward otherwise rearward recommendations, the new static retardation push created by the effective use of the new parking brake system might be:
(a) When it comes to an automible besides a trailer-tractor that is equipped with over one or two axles, in a way that the fresh new quotient static retardation force/GAWR is not lower than 0.twenty-eight your axle other than an effective steerable side axle; and you may
With all of vehicle parking brake system used, the automobile should will always be stationary against constant and you may facing down hill into the a soft, deceased portland concrete real path which have a 20-per cent stages, one another
(b) In the case of a trailer-tractor that’s equipped with over several axles, in a manner that the fresh new quotient fixed retardation push/GVWR isn’t less than 0.14.
six.step 3.step 1 New vehicle parking brake system can be effective at reaching the minimum overall performance given in both six.1 otherwise six.dos having any unmarried leakage-form of incapacity, in almost any most other brake system, away from a member made to contain compressed air otherwise braking system fluid (leaving out inability regarding a component of a brake chamber casing but also inability of every braking system chamber diaphragm which is part of almost every other brakes also good diaphragm that’s prominent in order to the fresh new parking brake system and every other brakes), when the pressures regarding the automobile’s vehicle parking brake compartments is located at the amount calculated when you look at the 6.step 3.4.
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six.step three.2 A mechanical mode are going to be so long as, immediately following a vehicle parking braking system software program is created using the demands into the the vehicle’s parking brake chambers within profile determined within the 6.step three.4, as well as heavens and you will fluid challenges regarding the automobile’s braking options was next bled as a result of zero, and you can without the need for electrical power, retains the brand new parking brake application with enough vehicle parking retardation push to help you green singles logowanie meet with the lowest abilities specified from inside the 6.3.1 along with both 6.step one or six.2.
6.step 3.step three Getting automobiles and busses, which have a first reservoir program tension regarding a hundred psi and you will, if designed to pull an automible equipped with air brakes, that have a 50 cubic inch decide to try reservoir attached to the likewise have line coupling, no later than simply about three seconds from the time off actuation out-of the latest vehicle parking brake control, brand new mechanized function labeled into the 6.3.dos are going to be actuated. For trailers, to the also have line first pressurized so you can 100 psi with the also have line part of the truck try rig (Figure 1) and you will, if designed to pull an auto equipped with heavens brakes, with a fifty cubic inch test tank connected to the buttocks likewise have line coupling, zero later than just about three seconds ever since ventilation on the surroundings of the side also provide line coupling is established, the fresh new physical setting referred to when you look at the 6.step three.2 would be actuated. Which criteria can be found to own cars, vehicles and trailers each other which have and you can with no single leakage-kind of inability, in almost any most other brakes, out of a part built to incorporate compressed air or brake water (consistent with the parenthetical words specified for the six.3.1).