six.4 Parking braking system manage – trucks and busses. They is going to be operable because of the one resting throughout the normal driving status. The latest handle are identified in a way that specifies the latest sorts of manage process. The vehicle parking brake manage should handle new parking brakes of vehicle and of people air braked auto it is designed in order to tow.
six.5.1 For automobiles and vehicles, with 1st requirements just like the specified during the 6.5.dos, all of the time after a software actuation of your parking braking system manage, with any after that number of stress, or mix of degrees of stress, from the reservoirs of every of vehicle’s brake expertise, zero lack of parking brake retardation force shall come from good launch actuation of one’s parking brake control until this new vehicle parking brakes are capable, immediately following such as for instance discharge, to be reapplied at a consistent level conference minimal overall performance given either in 6.1 otherwise six.dos. So it demands shall be came across one another which have and without having any system with the, with and you will in the place of solitary leakages-sorts of incapacity, in almost any almost every other brake system, away from a member built to have compressed air otherwise braking system water (consistent with the parenthetical words specified into the 6.step 3.1).
6.5.dos The original conditions having six.5.step 1 are listed below: The reservoir program pressure are a hundred psi. In case the auto was created to tow a car or truck armed with air brakes, good 50 cubic inches take to tank is actually attached to the likewise have line coupling.
6.5.step 3 Having trailers, with 1st requirements once the given in the 6.5.4, all the time shortly after actuation of parking brake system of the ventilation leading likewise have range coupling towards the atmosphere, sufficient reason for people further amount of tension, otherwise blend of quantities of tension, in the reservoirs of every of your automobile’s braking system solutions, the fresh new vehicle parking brake system should never be releasable by repressurizing the supply range making use of the also have range portion of the truck test rig (Contour step 1) to the stress significantly more than 70 psi, unless new vehicle parking brakes have the capability, immediately following for example discharge, away from reapplication because of the next ventilation of one’s front side supply line coupling towards the conditions, at a rate meeting the minimum efficiency specified either in 6.1 otherwise six.2. step three.1).
That it specifications are going to be found one another which have and without the solitary leakage-particular failure, in any almost every other brake system, off a member designed to contain compressed air otherwise braking system liquid (consistent with the parenthetical statement given within the six
6.5.cuatro The original criteria for 6.5.step 3 are as follows: New reservoir system and provide range try pressurized to one hundred psi, by using the have line portion of the trailer test rig (Shape step one). In case the vehicles was created to tow an automible armed with sky brakes, a 50 cubic inches shot tank are connected to the butt have range coupling.
six.six.1 To own automobiles and you will vehicles, that have initially standards since the given inside the six.six.2, the fresh new parking brakes are going to be able to appointment the minimum performance given in a choice of 6.step one or six.dos, which have any solitary leakage-form of incapacity, in any other brakes, regarding an associate designed to have compressed-air otherwise brake fluid (similar to the parenthetical words specified from inside the six.step 3.1) at the end of the test sequence given into the six.6.step 3.
six.6.dos The original criteria for 6.six.1 are as follows: The new system is found on. The latest tank program tension is 100 psi. In the event your vehicles is designed to tow an auto equipped with heavens brake system, an excellent 50 cubic inches test tank is actually linked to the have range coupling.
6.six.3 The test succession getting 6.6.1 can be as comes after: New motor was deterred. Any single leakage form of incapacity, in any hookup free app almost every other brakes, off a part designed to contain compressed-air or brake water (consistent with the parenthetical terminology given inside 6.step three.1), will be produced about brakes. An application actuation of your own parking braking system handle will then be produced. 30 mere seconds shortly after instance actuation, a launch actuation of vehicle parking brake control is created. 30 mere seconds adopting the release actuation, a final application actuation of parking braking system handle is done.