Per vehicle might be armed with an emergency brake system and therefore, within the requirements out-of S6

Per vehicle might be armed with an emergency brake system and therefore, within the requirements out-of S6

6.eight.2.step 1 With respect to the following the processes, determine the fresh new tolerance number of well-known diaphragm leakage-style of failure (or comparable quantity of leakage regarding heavens chamber with one to diaphragm) where the fresh new car’s parking brake system be unreleasable. Having an initial tank program and gives line stress from a hundred psi, zero applying of any of the car’s brakes, and you will, in case the car is designed to pull a motor vehicle equipped with air brake system, a good 50 cubic inch take to reservoir attached to the have line coupling, expose a great leakage-types of failure of well-known diaphragm (otherwise comparable leakages about sky chamber which includes one diaphragm). Make a vehicle parking brake app from the venting the front likewise have line coupling for the conditions, and reduce this new pressures in most of the vehicle’s reservoirs in order to no. six.3.dos are nevertheless actuated and you will keep the vehicle parking braking system applications with plenty of vehicle parking retardation forces to get to know the minimum overall performance specified either in six.1 or 6.dos. Do that process which have progressively decreasing or increasing accounts (almost any is applicable) away from leaks-types of diaphragm disappointments or equivalent leakages, to determine the lowest number of well-known diaphragm leakage-type inability (or similar amount of leakages regarding the air chamber who has one diaphragm) of which all technical means referred to from inside the 6.step three.dos are still actuated and you will hold the vehicle parking brake software with plenty of parking retardation forces meet up with minimal efficiency given in a choice of six.1 or 6.dos.

Pressurize the production range of the hooking up the new trailer’s top have line coupling for the also provide range portion of the trailer try rig (Shape step one) to your regulator of your truck take to rig place during the 100 psi, and determine whether or not every physical form labeled into the S5 At quantity of common diaphragm leakages-type of incapacity (otherwise equivalent number of leakages on the air chamber containing you to definitely diaphragm) computed within the 6.7.2.step 1, and utilizing another processes, dictate the newest tolerance limitation reservoir leaks rates (inside the psi for each minute). Which have a first reservoir system and offer line tension off one hundred psi, zero applying of all vehicle’s brake system and you may, if your automobile was designed to tow an auto armed with sky brakes, a great fifty cubic inch shot reservoir attached to the rear have line coupling, generate a parking brake app of the ventilation leading also have range coupling on conditions. Influence maximum reservoir leakages price (during the psi each minute), which is the limitation rate off decrease in sky stress from any of the car’s reservoirs one performance next vehicle parking brake application.

S5 3 Using the following the processes, a great leakages-types of inability of the well-known diaphragm (otherwise similar leakages regarding sky chamber which includes one to diaphragm) you to definitely contributes to a maximum reservoir leakage price that is three moments the latest threshold limit tank leaks rate determined during the Having a primary tank program and offer range tension regarding a hundred psi, no applying of some of the automobile’s brakes and you can, if the car was created to tow a vehicle armed with air brakes, a beneficial fifty cubic inches try tank linked to the bottom also provide range coupling, build a parking brake app from the venting the leading supply line coupling to the environment. Dictate maximum tank leaks rate (from inside the psi each minute), which is the restrict speed out-of reduction of air tension regarding all car’s reservoirs one results after that parking brake software. The degree of well-known diaphragm leakages-method of incapacity (or comparable level of leaks on the heavens chamber with you to diaphragm) associated with which tank leakages price ‘s the level that’s for usage according to the choice set forth in 6(b).

seven Emergency brake system for cars and vehicles. 1, adjusts into the conditions of 7.step one because of eight.step 3. Although not, the vehicle part of a motor vehicle transporter shouldn’t have to meet the test drive requirements from eight.1 and you may seven.3.

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