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The front supply line coupling was vented towards conditions

Incorporate the fresh parking brake system through a loan application actuation of the vehicle parking braking system handle

S5.six.six.5 The initial criteria getting S5.6.6.4 are listed below: The latest reservoir system and supply line try pressurized to help you one hundred psi, making use of the likewise have range part of the truck shot rig (Profile step one).

S5.6.six.six The test series to possess S5.6.six.cuatro can be pursue. People solitary leaks sort of incapacity, in any other brake system, out-of an associate made to incorporate compressed air or braking system water (consistent with the parenthetical statement specified inside the S5.six.step 3.1), are lead on brakes. 30 mere seconds following the initiation of these venting, the production line is repressurized towards trailer sample rig (Shape step one). 30 moments pursuing the initiation of such repressurizing of have line, the leading also provide line try ventilated into atmosphere. This technique is conducted sometimes by the partnership and disconnection of your own have line coupling otherwise by the use of a device installed within the the production line portion of the trailer shot rig nearby the supply line coupling.

S5.six.eight Limit amount of preferred diaphragm leaks-method of failure/ Equivalent number of leakage throughout the heavens chamber which has had one to diaphragm. In the case of auto which the possibility in the S5.6(b) has been decided to go with, influence the utmost number of well-known diaphragm leakages-variety of failure (or equivalent level of leakages in the sky chamber which includes you to definitely diaphragm) according to the steps established inside S5.6.seven.step one owing to S5.6.7.2.3.

If the car was designed to pull a car or truck armed with heavens brakes, a 50 cubic inch attempt reservoir is actually attached to the butt also have line coupling

S5.6.eight.step 1.1 According to the adopting the processes, determine this new tolerance amount of popular diaphragm leaks-method of inability (otherwise comparable level of leaks regarding the air chamber which has had one diaphragm) at which the automobile’s vehicle parking brake system be unreleasable. Having a primary tank system tension out of a hundred psi, the latest engine turned of, zero application of any of the automobile’s brakes, and, should your auto is designed to tow an automobile equipped with sky brake system, good fifty cubic inches try reservoir linked to the have line coupling, present a leakages-type failure of your own popular diaphragm (otherwise comparable leakage about air chamber UЕѕiteДЌnГЅ obsah containing you to definitely diaphragm). Reduce the pressures in most of your vehicle’s reservoirs to help you zero, stimulate brand new engine and enable it so you’re able to lazy, and permit the pressures regarding the automobile’s reservoirs to go up until they balance out otherwise before compressor close-from area was hit. During the time, create a release actuation of one’s parking braking system handle, and find out whether all the physical form described in S5.six.step three.2 will always be actuated and you will contain the parking braking system apps with sufficient vehicle parking retardation push to generally meet minimal results given in both S5.6.1 or S5.6.2. Repeat this techniques having more and more coming down or broadening membership (almost any applies) from leakage-form of diaphragm failures otherwise comparable leakages, to determine the minimal level of prominent diaphragm leakages-variety of failure (otherwise comparable level of leakage throughout the air chamber that has had you to definitely diaphragm) of which all the physical function referred to into the S5.6.step 3.2 are nevertheless actuated and you can support the vehicle parking braking system applications with sufficient parking retardation pushes meet up with the minimum abilities given in a choice of S5.6.1 or S5.6.2.

S5.six.7.1.2 At the amount of prominent diaphragm leaks-types of failure (or comparable amount of leakage throughout the heavens chamber with which has you to definitely diaphragm) determined within the S5.six.eight.step one.1, and using next techniques, influence the fresh tolerance restrict tank price (inside psi each minute). That have an initial reservoir system pressure off one hundred psi, brand new engine-turned out-of, zero application of any of the automobile’s brakes and you may, when your vehicles was designed to tow a car or truck equipped with sky brake system, an excellent 50 cubic inch decide to try reservoir linked to the also provide line coupling, apply actuation of your vehicle parking braking system control. Influence maximum tank leakages speed (from inside the psi a minute), which is the restrict rates regarding reduction of heavens tension out-of all car’s reservoirs one to efficiency up coming vehicle parking braking system app.