New parking brake manage should be separate on the services braking system handle
six.cuatro Parking braking system manage – automobiles and you will buses. It might be operable of the men sitting on regular operating condition. The fresh handle is recognized in a way that specifies new type of control operation. The fresh new parking braking system handle shall manage the brand new parking brakes of your car as well as people heavens braked car it is designed in order to tow.
S5
six.5.1 To own cars and you will vehicles, which have 1st requirements once the given in six.5.2, all the time shortly after an application actuation of one’s parking braking system control, and with any then number of tension, otherwise mixture of levels of stress, from the reservoirs of every of your car’s braking system systems, zero loss of vehicle parking brake retardation push shall result from a great discharge actuation of the parking brake control except if the new vehicle parking brakes are capable, shortly after such as for instance release, of being reapplied for a price fulfilling the minimum efficiency specified in a choice of six.1 otherwise six.2. This requirement would be came across each other having and you will with no engine to the, with and in place of solitary leakage-sort of incapacity, in every most other brakes, out of a member built to include compressed-air or braking system water (similar to the parenthetical phrase given when you look at the six.step 3.1).
6.5.2 The original conditions to have 6.5.step one are as follows: Whether your car is designed to tow an auto armed with heavens brake system, a beneficial fifty cubic inch test tank are connected to the also have line coupling.
six.5.step 3 To possess trailers, with very first requirements since the given inside the six.5.4, all of the time immediately following actuation of the vehicle parking brake system from the venting leading have range coupling toward ambiance, with one after that level of stress, or mixture of degrees of stress, about reservoirs of every of one’s automobile’s brake assistance, the fresh vehicle parking brake system shall not be releasable by repressurizing the production line utilising the supply range part of the trailer shot rig (Figure step one) to the tension significantly more than 70 psi, unless of course the newest vehicle parking brakes have the capability, just after such as for example launch, out of reapplication because of the next venting of your own top have range coupling for the surroundings, for a price appointment the minimum overall performance given in a choice of six.1 otherwise 6.2. That it demands shall be met each other that have and you may with no unmarried leakage-method of incapacity, in almost any almost every other brake system, from a part made to consist of compressed-air otherwise braking system fluid (similar to the parenthetical words given during the six.step three.1).
6.5.4 The original standards to own six.5.step 3 are listed happn usa below: This new reservoir program and gives line try pressurized in order to a hundred psi, utilizing the also have range part of the truck shot rig (Contour 1). Whether your automobile is designed to pull a motor vehicle armed with heavens brake system, an excellent fifty cubic inch take to tank is linked to the butt supply line coupling.
The fresh tank system tension try 100 psi
six.six.step one To own trucks and you can vehicles, with very first requirements as given into the 6.6.dos, this new parking brakes would be able to appointment minimal results specified in a choice of six.step 1 or 6.2, with one solitary leakages-variety of incapacity, in virtually any almost every other brakes, of an associate designed to include compressed air otherwise brake fluid (consistent with the parenthetical keywords given from inside the six.3.1) at the end of the test succession given within the 6.6.step three.
6.6.2 The first conditions getting 6.6.1 are listed below: The latest engine is on. In case the vehicle is made to tow an auto equipped with sky brake system, good 50 cubic inches decide to try reservoir are linked to the have range coupling.
six.six.3 The test sequence getting 6.6.step 1 is really as employs: The new engine is switched off. People single leaks style of incapacity, in virtually any almost every other brake system, from an associate made to consist of compressed-air or brake liquid (similar to the parenthetical phrase specified when you look at the six.step 3.1), will be delivered on brakes. A software actuation of one’s parking brake handle will be produced. 30 mere seconds after particularly actuation, a launch actuation of vehicle parking brake handle is established. Thirty mere seconds following the release actuation, a last software actuation of your parking brake handle is created.