six.4 Parking braking system manage – cars and you will buses. It might be operable from the men sitting regarding normal operating reputation. The new handle should be known in a manner that determine the fresh particular handle process. The brand new 
parking braking system control will manage the latest parking brakes of your vehicles as well as one sky braked car it is designed to tow.
S5
6.5.step one For automobiles and you will busses, that have 1st conditions since the specified from inside the 6.5.dos, all the time immediately after an application actuation of your own vehicle parking braking system control, along with any further quantity of pressure, or combination of degrees of pressure, regarding reservoirs of any of your vehicle’s braking system options, zero losing parking brake retardation force should originate from an effective launch actuation of your vehicle parking braking system handle unless of course brand new parking brake system are capable, shortly after including launch, of being reapplied for a price appointment the minimum overall performance given in a choice of six.1 otherwise six.dos. That it specifications are going to be fulfilled one another which have and without any motor towards the, in accordance with and you can instead solitary leakages-method of failure, in every almost every other brake system, of a member made to contain compressed-air otherwise brake liquid (similar to the parenthetical words specified inside 6.step three.1).
six.5.2 The initial standards for 6.5.1 are as follows: When your auto was created to pull a car or truck equipped with air brakes, a great fifty cubic inch take to tank are linked to the also provide range coupling.
six.5.step three Having trailers, which have initial conditions since given within the 6.5.cuatro, all the time shortly after actuation of one’s vehicle parking brake system by the ventilation the front likewise have line coupling for the ambiance, with any further number of tension, or mixture of levels of pressure, in the reservoirs of any of your own automobile’s brake assistance, brand new parking brakes should not releasable by repressurizing the production range by using the also have line portion of the truck decide to try rig (Figure 1) to the stress significantly more than 70 psi, unless the vehicle parking brakes are capable, shortly after instance release, from reapplication because of the after that ventilation of top also provide range coupling toward ambiance, for a price appointment minimal overall performance specified in both 6.1 otherwise six.dos. That it needs are fulfilled both having and you can with no single leakage-particular incapacity, in any other brake system, from a part made to have compressed-air otherwise braking system water (similar to the parenthetical words given inside the six.3.1).
6.5.4 The initial conditions getting six.5.step 3 are as follows: Brand new reservoir system and gives line try pressurized in order to 100 psi, utilizing the likewise have line part of the truck shot rig (Contour step one). If the auto is made to tow a motor vehicle equipped with heavens brakes, a beneficial fifty cubic inch attempt reservoir was connected to the butt likewise have line coupling.
The reservoir system tension is actually one hundred psi
6.6.step one To possess cars and you can vehicles, which have initially criteria just like the given for the six.6.dos, new vehicle parking brake system would be able to conference minimal results specified in both six.1 otherwise 6.dos, that have people single leaks-style of inability, in any most other brake system, away from a part designed to have compressed air otherwise brake fluid (similar to the parenthetical phrase given during the 6.step three.1) at the end of the exam succession given in the six.six.step 3.
six.six.2 The first conditions to own six.six.step 1 are listed below: The fresh new system is found on. In case your car is made to pull a car or truck armed with air brakes, a great 50 cubic inches shot reservoir was attached to the also provide line coupling.
six.six.step three The test sequence having six.6.1 is just as employs: This new motor was turned-off. Any solitary leakages sorts of incapacity, in almost any most other brake system, off a part designed to include compressed air or brake fluid (consistent with the parenthetical keywords specified into the six.step three.1), is then lead from the brake system. A credit card applicatoin actuation of your parking brake handle will then be generated. Thirty seconds just after for example actuation, a production actuation of the vehicle parking braking system handle is generated. Thirty seconds following the discharge actuation, a final app actuation of your vehicle parking braking system control is made.