Leading also provide line coupling was vented into the environment

During the time, make a production actuation of one’s parking braking system handle, and watch whether or not the physical means labeled from inside the S5

S5.6.six.5 The first conditions to own S5.six.6.4 are as follows: The fresh reservoir system and offer line was pressurized to one hundred psi, using the also provide range part of the trailer shot rig (Shape step 1). If your automobile was designed to tow a vehicle armed with sky brakes, a great 50 cubic inch attempt reservoir try attached to the buttocks also provide line coupling.

30 seconds adopting the initiation of these venting, the production range is repressurized to your truck test rig (Contour step 1)

S5.6.six.six The exam succession to possess S5.6.six.4 is just as uses. People solitary leakage method of inability, in just about any almost every other brakes, off a part designed to contain compressed air or brake water (consistent with the parenthetical statement specified into the S5.six.step 3.1), is actually brought on brake system. Thirty moments pursuing the initiation of these repressurizing of your own likewise have line, the front have line try ventilated towards the surroundings. This procedure is performed possibly from the relationship and you may disconnection of your also have range coupling otherwise because of the usage of a device hung from inside the the production line portion of the trailer shot rig nearby the also have range coupling.

S5.six.seven Restriction number of common diaphragm leakage-kind of failure/ Comparable amount of leakage about air chamber that contains that diaphragm. In the case horny International dating of car whereby the choice from inside the S5.6(b) could have been decided on, dictate the utmost level of common diaphragm leakages-method of inability (otherwise similar quantity of leakage from the heavens chamber with one to diaphragm) depending on the measures established in S5.6.seven.step 1 as a consequence of S5.6.eight.2.step three.

S5.6.seven.step 1.step 1 With respect to the following procedure, influence brand new tolerance quantity of preferred diaphragm leaks-form of failure (otherwise similar amount of leakage from the heavens chamber that features you to diaphragm) of which the newest car’s parking brake system feel unreleasable. Which have an initial reservoir program stress out of 100 psi, the newest engine-turned away from, zero application of some of the

vehicle’s brake system, and you can, if for example the vehicle was designed to tow an auto equipped with air brakes, good fifty cubic inches try tank linked to the also have range coupling, expose a beneficial leakage-variety of failure of your own preferred diaphragm (or equivalent leakage regarding air chamber that contains you to diaphragm). Incorporate the new parking brake system through a software actuation of one’s parking brake manage. Reduce the pressures in most of your vehicle’s reservoirs to help you zero, activate the brand new engine and permit they so you’re able to lazy, and permit the brand new challenges on vehicle’s reservoirs to go up up to they balance otherwise through to the compressor close-regarding section try hit. 6.3.dos remain actuated and you will support the parking braking system software with sufficient vehicle parking retardation force to meet up minimal results specified in either S5.6.step 1 or S5.six.2. Try this techniques having progressively decreasing otherwise broadening levels (whatever is applicable) off leakage-method of diaphragm downfalls or similar leakages, to select the lowest amount of prominent diaphragm leakages-method of inability (or equivalent amount of leakages regarding the heavens chamber which has you to definitely diaphragm) of which most of the mechanical means described in S5.six.step three.2 will always be actuated and contain the vehicle parking brake software with plenty of parking retardation forces to meet up with the minimum overall performance given in a choice of S5.six.step one otherwise S5.six.2.

S5.six.seven.step one.dos During the level of prominent diaphragm leaks-sorts of inability (or comparable amount of leaks regarding air chamber which includes one to diaphragm) determined into the S5.6.seven.step one.1, and using the next processes, dictate the brand new endurance limitation tank rate (within the psi a minute). Which have an initial tank program tension away from 100 psi, the brand new engine turned of, no application of any of the car’s brake system and you will, if your auto was designed to pull an auto equipped with heavens brakes, an excellent 50 cubic inches try reservoir linked to the likewise have range coupling, apply actuation of one’s parking brake control. Determine the most reservoir leakage rate (inside the psi each minute), the limit price out-of reduced amount of sky tension from the vehicle’s reservoirs one to abilities after that vehicle parking braking system application.