The leading supply line coupling try vented into surroundings

Apply the fresh new vehicle parking brake system by making a credit card applicatoin actuation of your parking braking system control

S5.6.six.5 The initial requirements to have S5.6.6.cuatro are as follows: The latest reservoir system and offer line are pressurized in order to 100 psi, with the also provide range part of the truck shot rig (Contour step 1).

S5.6.six.six The test sequence for S5.six.6.cuatro can be as follows. People solitary leaks style of incapacity, in every most other brakes, off an associate designed to contain compressed air or braking system water (similar to the parenthetical phrase given inside S5.6.step three.1), is actually put throughout the brake system. Thirty moments after the initiation of such venting, the production range are repressurized into truck take to rig (Contour step 1). 30 mere seconds following initiation of such repressurizing of one’s supply range, leading have range is actually ventilated toward ambiance. This process is carried out possibly from the partnership and you may disconnection of one’s likewise have range coupling otherwise by the entry to a valve hung for the the production line part of the trailer sample rig close to the likewise have range coupling.

S5.6.eight Limit amount of prominent diaphragm leaks-sorts of incapacity/ Equivalent level of leakage throughout the air chamber with you to definitely diaphragm. Regarding car which the choice within the S5.6(b) has been selected, influence the utmost number of popular diaphragm leaks-variety of failure (otherwise comparable quantity of leakage from the sky chamber who has one to diaphragm) with regards to the procedures set forth when you look at the S5.six.7.step 1 compliment of S5.6.eight.dos.3.

In the event your car was created to pull an auto equipped with sky brakes, a 50 cubic inches attempt tank try connected to the buttocks have line coupling 1 With regards to the pursuing the techniques, dictate brand new threshold number of preferred diaphragm leakage-form of incapacity (otherwise equivalent number of leakages from the sky chamber that features you to diaphragm) where brand new car’s vehicle parking brakes feel unreleasable. Which have a first reservoir system pressure of a hundred psi, the new engine turned of, zero applying of the automobile’s brakes, and you may, in the event the auto was created to tow a car equipped with heavens brakes, a fifty cubic inches test reservoir connected to the likewise have line coupling, establish a great leakage-types of failure of your own well-known diaphragm (otherwise equivalent leakages regarding the sky chamber which has had you to definitely diaphragm). Reduce the challenges throughout of car’s reservoirs in order to zero, stimulate the motor and enable they to help you sluggish, and invite this new challenges from the automobile’s reservoirs to go up up to it balance out otherwise until the compressor sealed-regarding point are achieved. At the time, make a launch actuation of your vehicle parking brake control, and determine if or not most of the mechanical means known in the S5.six.step three.dos are actuated and hold the parking brake apps with plenty of vehicle parking retardation push in order to satisfy the minimum abilities specified in either S5.6.1 otherwise S5.6.dos. Do that procedure that have more and more coming down or increasing accounts (any sort of is applicable) off leaks-variety of diaphragm disappointments otherwise equivalent leaks, to search for the minimum amount of common diaphragm leakage-type incapacity (or similar quantity of leakage on sky chamber that contains that diaphragm) of which all physical form regarded within the S5.six.step 3.2 will always be actuated and you will hold the parking brake applications with enough vehicle parking retardation pushes to generally meet the minimum overall performance specified in either S5.six.step 1 or S5.6.2.

S5.6.eight.step one.2 Within quantity of well-known diaphragm leaks-form of incapacity (or equivalent quantity of leaks regarding heavens chamber which includes you to diaphragm) computed when you look at the S5.6.eight.1.step one, and using another procedure, determine the latest endurance restriction reservoir speed (in the psi a minute). With an initial tank system tension out-of one hundred psi, brand new engine-turned out-of, zero applying of the automobile’s brake system and you will, if your vehicle is made to pull a vehicle armed with air brakes, an excellent fifty cubic inch decide to try tank connected to the supply line coupling, apply actuation of your vehicle parking brake control. Influence the utmost reservoir leaks speed (when you look at the psi for each minute), which is the maximum rate off reduced total of sky stress regarding the vehicle’s reservoirs one to results then vehicle parking brake software.

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