Influence the most tank leakages rates (within the psi per minute), the restriction rate from reduced amount of heavens stress out-of all vehicle’s reservoirs you to efficiency following parking braking system software
S5.6.six.5 The first requirements to possess S5.6.six.cuatro are as follows: The latest tank system and provide line was pressurized to a hundred psi, by using the supply range part of the truck try rig (Figure step one).
S5.six.6.6 The test sequence for S5.6.6.4 can be as follows. Any solitary leakages sorts of inability, in virtually any almost every other brake system, away from a member made to have compressed-air otherwise braking system water (similar to the parenthetical terminology specified in S5.six.step 3.1), is lead on the brakes. Thirty mere seconds after the initiation of these ventilation, the production range was repressurized toward trailer decide to try rig (Shape step one). Thirty mere seconds following the initiation of such repressurizing of your also have range, the leading have line is actually vented to your environment. This procedure is conducted possibly from the commitment and you may disconnection of your own also have line coupling otherwise from the use of a device installed when you look at the the supply range portion of the trailer attempt rig nearby the have range coupling.
If your car was created to tow a motor vehicle armed with air brakes, a 50 cubic inch try reservoir try attached to the butt have range coupling
S5.6.eight Restrict number of prominent diaphragm leakage-particular incapacity/ Similar level of leaks in the sky chamber that has had you to diaphragm. In the example of auto https://datingmentor.org/escort/jersey-city/ whereby the option in the S5.6(b) could have been chose, determine the utmost quantity of preferred diaphragm leakage-types of failure (otherwise comparable level of leakage regarding the sky chamber that contains you to diaphragm) with respect to the actions set forth for the S5.six.7.step 1 courtesy S5.6.7.dos.step 3.
S5.six.seven.1.1 According to the pursuing the procedure, determine brand new threshold amount of prominent diaphragm leaks-form of inability (or equivalent number of leakages on sky chamber with which has that diaphragm) where brand new vehicle’s parking brakes be unreleasable. With a primary reservoir system stress regarding 100 psi, the newest engine-turned out-of, zero applying of the car’s brake system, and, in case your auto was created to pull an automible equipped with air brake system, a 50 cubic inch test tank linked to the also have line coupling, expose an excellent leaks-method of inability of your own preferred diaphragm (otherwise similar leaks regarding the heavens chamber that has had that diaphragm). Incorporate the latest parking brakes by simply making an application actuation of your own vehicle parking brake handle. Slow down the pressures in every of your own automobile’s reservoirs so you can zero, turn on the motor and allow they so you’re able to idle, and invite the latest demands on the automobile’s reservoirs to go up up to it stabilize otherwise until the compressor close-from section is attained. At that time, build a release actuation of the vehicle parking braking system handle, and see if or not all physical form regarded during the S5.six.3.2 remain actuated and you will hold the vehicle parking braking system apps with enough parking retardation push to fulfill the minimum results specified either in S5.six.step one otherwise S5.six.dos. Try this techniques having more and more decreasing otherwise expanding accounts (any sort of can be applied) away from leakage-particular diaphragm failures otherwise equivalent leakages, to choose the minimal quantity of prominent diaphragm leaks-kind of inability (otherwise equivalent level of leakages on air chamber that has that diaphragm) of which most of the physical mode described during the S5.6.3.dos are actuated and you may secure the vehicle parking braking system apps with sufficient parking retardation pushes to meet up the minimum overall performance given in both S5.6.step one otherwise S5.6.2.
S5.6.7.step one.2 Within level of prominent diaphragm leaks-particular incapacity (or comparable number of leakage regarding air chamber that features you to definitely diaphragm) determined from inside the S5.six.eight.step one.step one, and making use of another procedure, influence the fresh new threshold restrict tank rate (into the psi for each minute). Having a first tank program tension out-of a hundred psi, the latest engine turned out of, zero applying of any of the car’s brakes and, if the auto is made to pull an automobile equipped with sky brakes, a good fifty cubic inch shot reservoir connected to the also provide line coupling, apply actuation of your own vehicle parking braking system manage.