The front supply range coupling are ventilated towards atmosphere

The front supply range coupling are ventilated towards atmosphere

Implement brand new vehicle parking brakes by creating a software actuation of your vehicle parking braking system manage

S5.6.six.5 The first conditions for S5.six.6.4 are listed below: The new tank program and offer range are pressurized to 100 psi, by using the also have range part of the trailer try rig (Profile step one).

S5.6.six.six The test succession to possess S5.six.6.cuatro is really as follows. One unmarried leaks form of failure, in virtually any most other brakes, away from a member built to consist of compressed air otherwise brake fluid (similar to the parenthetical phrase given when you look at the S5.six.step three.1), is actually brought on brakes. Thirty moments pursuing the initiation of these venting, the production line are repressurized towards the truck sample rig (Contour step one). Thirty mere seconds following initiation of these repressurizing of the also provide line, the leading likewise have range was vented into environment. This method is conducted often because of the commitment and you may disconnection of also have range coupling otherwise because of the entry to a valve strung from inside the the production line portion of the truck try rig around the supply line coupling.

S5.6 Maximum level of prominent diaphragm leaks-sort of incapacity/ Equivalent number of leakage on the sky chamber which has one diaphragm. When it comes to auto whereby the possibility within the S5.6(b) has been decided on, influence the maximum quantity of preferred diaphragm leakages-sorts of incapacity (or similar number of leakage in the heavens chamber who has you to diaphragm) depending on the measures established during the S5.six.7.1 compliment of S5.

In the event your auto was created to tow a car or truck armed with air brake system, an effective 50 cubic inch test tank is attached to the buttocks supply range coupling

S5.6.eight.step 1.step one With respect to the following techniques, determine new tolerance amount of common diaphragm leakage-type of failure (otherwise comparable amount of leaks from the heavens chamber with which has one to diaphragm) of which the fresh vehicle’s vehicle parking brake system getting unreleasable. Having a first tank program stress of a hundred psi, the latest engine turned out of, zero applying of any of the automobile’s brake system, and, should your car is designed to pull a car or truck equipped with sky brakes, a fifty cubic inch attempt tank connected to the supply range coupling, introduce a beneficial leakages-particular inability of the popular diaphragm (otherwise similar leakage on the sky chamber that has one diaphragm). Slow down the pressures in every of car’s reservoirs to no, stimulate the new system and allow they to lazy, and allow this new challenges about car’s reservoirs to rise up to it stabilize otherwise before the compressor sealed-out-of part try reached. During the time, create a release actuation of vehicle parking brake control, and watch whether or not the technical setting labeled when you look at the S5.six.step three.dos are actuated and you may keep the vehicle parking brake software with plenty of parking retardation push to fulfill minimal efficiency specified in both S5.six.step 1 otherwise S5.6.dos. Try this techniques which have more and more coming down or broadening membership (almost any can be applied) of leakages-type of diaphragm downfalls otherwise comparable leaks, to search for the lowest quantity of popular diaphragm leaks-style of incapacity (or equivalent level of leakages on the heavens chamber with you to diaphragm) from which most of the mechanized setting known into the S5.six.step 3.dos continue to be actuated and you will support the vehicle parking brake programs with enough parking retardation pushes meet up with minimal performance specified either in S5.six.step 1 otherwise S5.six.dos. During the level of prominent diaphragm leaks-type of failure (otherwise comparable quantity of leakage regarding air chamber with which has you to diaphragm) determined for the one.1, and making use of the second process, determine the tolerance restrict tank speed (within the psi each and every minute). That have an initial tank system tension of one hundred psi, the newest engine-turned away from, no applying of some of the automobile’s brakes and, whether your car is designed to tow a car or truck armed with air brakes, good fifty cubic inch sample tank linked to the also have line coupling, apply actuation of parking brake manage. Dictate the maximum reservoir leakages speed (into the psi each and every minute), which is the limitation rates out-of reduced amount of heavens stress off all automobile’s reservoirs one abilities upcoming vehicle parking brake software.