Determine maximum reservoir leakage rates (in the psi each minute), the limit price from decrease in air tension from all automobile’s reservoirs you to definitely abilities then parking braking system application
S5.6.six.5 The initial conditions getting S5.6.six.cuatro are listed below: The latest reservoir system and supply range is actually pressurized to 100 psi, using the also provide line portion of the truck sample rig (Contour step 1).
S5.six.six.6 The exam series to own S5.6.six.cuatro can be employs. People single leakage variety of failure, in almost any other brake system, away from a member made to consist of compressed air or brake fluid (similar to the parenthetical terms given into the S5.6.3.1), try delivered regarding brakes. Thirty seconds adopting the initiation of these ventilation, the production range try repressurized towards trailer shot rig (Profile 1). Thirty seconds pursuing the initiation of these repressurizing of your also have range, leading likewise have line is ventilated into the surroundings. This process is completed either by relationship and you can disconnection of have line coupling otherwise from the usage of a device installed from inside the the production line part of the trailer sample rig around the have range coupling.
If the vehicle is designed to pull an auto armed with air brake system, a great fifty cubic inches decide to try tank try attached to the rear also provide range coupling
S5.six.eight Restriction quantity of preferred diaphragm leakage-variety of inability/ Equivalent amount of leaks from the air chamber that has had one diaphragm. In the case of vehicles by which the choice inside S5.6(b) might have been decided on, determine the maximum level of common diaphragm leakages-form of inability (or equivalent level of leaks regarding air chamber which has had one diaphragm) with respect to the strategies established within the S5.6.seven.step one owing to S5.six.seven.2.step 3.
S5.six.7.step 1.1 According to following procedure, determine new endurance level of well-known diaphragm leakage-kind of incapacity (or comparable amount of leaks on the air chamber with one diaphragm) of which the new car’s vehicle parking brakes be unreleasable. Which have an initial reservoir system tension away from 100 psi, this new engine-turned away from, no application of the automobile’s brake system, and you will, when your automobile is made to tow a car armed with air brake system, an effective fifty cubic inch take to tank linked to the have range coupling, introduce an excellent leaks-particular inability of one’s well-known diaphragm (otherwise comparable leakages regarding the air chamber which has one diaphragm). Pertain the fresh new vehicle parking brakes by simply making a software actuation of the parking braking system handle. Reduce the pressures in most of car’s reservoirs in order to no, turn on this new escort girl Hartford motor and permit it in order to idle, and allow the brand new pressures on car’s reservoirs to rise up until they stabilize or till the compressor sealed-out of area is reached. At the time, create a launch actuation of one’s parking braking system manage, to check out if all technical setting known into the S5.6.step three.2 will always be actuated and support the parking braking system apps with plenty of vehicle parking retardation force in order to meet the minimum efficiency specified in a choice of S5.six.1 otherwise S5.6.dos. Try this procedure having increasingly coming down otherwise expanding profile (almost any enforce) off leaks-particular diaphragm problems or comparable leakage, to search for the lowest number of popular diaphragm leakages-type incapacity (otherwise equivalent level of leakage about air chamber that contains one diaphragm) of which all the mechanized setting referred to into the S5.6.3.2 are nevertheless actuated and you can support the parking brake apps with plenty of parking retardation forces in order to meet the minimum show given in either S5.six.1 otherwise S5.six.dos.
S5.6.7.step one.2 At quantity of well-known diaphragm leakages-style of failure (or similar level of leakages about heavens chamber that features that diaphragm) determined inside S5.six.7.step one.step one, and utilizing next processes, dictate the threshold restrict reservoir rate (inside the psi each and every minute). That have a primary tank program stress regarding 100 psi, the fresh engine turned away from, zero applying of all automobile’s brake system and you will, if the auto is made to tow an automible equipped with sky brake system, a beneficial fifty cubic inch take to tank connected to the supply line coupling, make an application actuation of the vehicle parking braking system handle.