six.4 Vehicle parking braking system control — vehicles and vehicles. They are operable from the one resting from the typical riding updates. The new handle are going to be recognized in a manner that determine the type of control procedure. This new parking brake handle shall manage the vehicle parking brakes of your auto and of one heavens braked car that it is customized so you can tow.
S5
6.5.step one Having cars and you may buses, having 1st criteria while the given when you look at the 6.5.2, constantly after a software actuation of vehicle parking brake handle, and with any after that amount of stress, otherwise combination of quantities of tension, from the reservoirs of every of car’s braking system solutions, no loss of parking braking system retardation force should result from a release actuation of your vehicle parking braking system control unless the fresh new parking brakes have the capability, immediately after eg launch, to be reapplied at a rate fulfilling minimal efficiency specified in a choice of six.step 1 or 6.dos. Which requirements are fulfilled both having and with no engine towards, in accordance with and you may in the place of single leakage-particular inability, in every most other brake system, of a member designed to consist of compressed-air or brake fluid (similar to the parenthetical phrase specified when you look at the six.step three.1).
six.5.dos The first conditions for six.5.step one are listed below: In case the vehicle is designed to tow a car or truck armed with air brakes, a beneficial 50 cubic inch sample tank try connected to the have range coupling.
six.5.3 For trailers, with very first requirements as the specified during the six.5.cuatro, all of the time after actuation of one’s parking brakes by the venting the leading supply line coupling to your atmosphere, along with any after that number of pressure, otherwise combination of amounts of tension, in the reservoirs of any of one’s car’s brake expertise, the new parking brakes should not be releasable from the repressurizing the production line making use of the also have range portion of the truck try rig (Profile 1) to the stress above 70 psi, unless the new parking brake system are capable, immediately after such as for instance release, regarding reapplication of the further venting of front side also have line coupling with the conditions, for a price fulfilling minimal performance given in a choice of 6.1 otherwise six.dos. This specifications are came across one another having and you may without having any single leakage-particular incapacity, in every most other brake system, out of a part designed to contain compressed air otherwise braking system water (similar to the parenthetical words given within the 6.step three.1).
6.5.cuatro The original standards having six.5.3 are listed below: The newest reservoir system and supply line try pressurized to one hundred psi, utilizing the likewise have line portion of the truck try rig (Profile 1). If the vehicle was created to tow an auto equipped with sky brakes, a fifty cubic inches decide to try tank is linked to the bottom supply range coupling.
The latest tank program stress is one hundred psi
six.six.step one For autos and you can vehicles, that have first standards because specified inside the six.six.2, the newest vehicle parking brake system will likely be ready appointment the minimum overall performance given either in 6.1 otherwise 6.2, with any unmarried leakage-variety of inability, in virtually any almost every other brakes, away from an associate built to contain compressed-air or braking system water (similar to the parenthetical keywords given inside the six.3.1) at the end of the exam sequence specified for the six.six.3.
six.six.2 The first conditions to own 6.6.step one are as follows: The new engine is found on. In case your vehicles is made to pull an automobile armed with sky brakes, an effective 50 cubic inches decide to try reservoir is actually attached to the also provide line coupling.
6.six.step 3 The test series to have 6.6.step one is really as comes after: The fresh engine is actually turned off. People single leaks kind of inability, in almost any other brake system, off an associate built to include compressed air otherwise braking system liquid (similar to the parenthetical terminology given when you look at the 6.3.1), will be introduced throughout the brakes. A loan application actuation of your own vehicle parking braking system manage will be produced. 30 seconds just after for example actuation, a launch actuation of one’s vehicle parking brake manage is established. Thirty seconds after the launch actuation, a last software actuation of vehicle parking brake control is made.