Dictate the most tank leaks rates (during the psi a minute), the maximum speed of reduction of heavens pressure away from all vehicle’s reservoirs one overall performance upcoming parking brake application
S5.6.6.5 The initial criteria to own S5.six.six.4 are listed below: The new reservoir program and gives line was pressurized to help you a hundred psi, by using the supply range portion of the trailer test rig (Figure 1).
S5.6.6.6 The test sequence having S5.6.6.4 is just as follows. People single leakage particular inability, in every almost every other brakes, of a member built to include compressed-air or braking system liquid (consistent with the parenthetical terms specified in the S5.six.step 3.1), try brought throughout the brakes. 30 seconds after the initiation of such ventilation, the production range was repressurized with the truck try rig (Shape step one). Thirty moments following initiation of such repressurizing of your own have range, leading also have range try ventilated on surroundings. This technique is conducted often of the connection and you can disconnection of also have range coupling otherwise because of the usage of a valve installed into the the supply range portion of the trailer try rig near the have line coupling.
Whether your automobile is made to tow a motor vehicle armed with sky brake system, an excellent 50 cubic inch try reservoir are linked to the rear supply range coupling
S5.six.eight Restriction quantity of common diaphragm leakage-types of inability/ Similar amount of leaks regarding the air chamber with that diaphragm. In the case of vehicles where the choice when you look at the S5.6(b) could have been opted, dictate maximum amount https://datingmentor.org/pl/kink-randki/ of preferred diaphragm leakages-particular inability (otherwise comparable number of leakage regarding heavens chamber with which has one to diaphragm) depending on the procedures established for the S5.six.7.step 1 using S5.six.eight.2.step 3.
S5.6.eight.step one.step one Depending on the after the process, influence brand new threshold number of preferred diaphragm leakages-variety of incapacity (otherwise similar quantity of leakage on the sky chamber with which has that diaphragm) from which the brand new vehicle’s vehicle parking brakes be unreleasable. That have a first tank system stress out-of a hundred psi, the latest engine-turned away from, no application of all vehicle’s brakes, and you may, if the automobile was designed to pull an automobile equipped with air brake system, good 50 cubic inches take to tank attached to the have range coupling, expose an effective leakages-sorts of incapacity of the popular diaphragm (otherwise comparable leakage on heavens chamber which has one diaphragm). Use the new parking brakes by making a software actuation of vehicle parking braking system manage. Slow down the pressures in every of your own vehicle’s reservoirs so you’re able to zero, stimulate new motor and permit it so you’re able to idle, and enable this new demands about vehicle’s reservoirs to go up up to it balance otherwise before the compressor close-of part try reached. During the time, make a production actuation of the vehicle parking braking system handle, and determine whether all the technical mode labeled in S5.6.step 3.dos are actuated and you may contain the vehicle parking braking system software with enough vehicle parking retardation push meet up with minimal show given in both S5.6.step 1 otherwise S5.six.dos. Do this procedure that have more and more decreasing or growing membership (any kind of applies) of leakages-types of diaphragm problems or equivalent leaks, to choose the minimum amount of well-known diaphragm leakages-types of incapacity (or comparable number of leakage regarding heavens chamber that has you to diaphragm) from which all the mechanical form described in S5.six.3.dos continue to be actuated and you can secure the parking braking system apps with sufficient parking retardation forces to meet the minimum results given either in S5.6.1 or S5.six.dos.
S5.6.eight.step 1.dos At the level of prominent diaphragm leakage-sort of incapacity (or similar level of leaks throughout the sky chamber that has had that diaphragm) determined in the S5.6.seven.step 1.1, and utilizing the next techniques, determine the fresh threshold maximum reservoir price (inside the psi each and every minute). Which have a first tank program pressure out of 100 psi, the brand new engine-turned of, zero applying of the automobile’s brake system and you will, whether your car was designed to tow a vehicle equipped with sky brake system, a good 50 cubic inch try tank linked to the also have range coupling, make an application actuation of the parking braking system manage.
