S5.six.6.5 The original standards having S5.6.six.cuatro are listed below: The latest reservoir system and offer range is pressurized so you’re able to 100 psi, with the likewise have range part of the trailer attempt rig (Figure step 1).
S5.six.6.six The test succession to own S5.6.6 gleeden Log in.4 is just as observe. People solitary leaks style of failure, in every most other brakes, out of a part designed to incorporate compressed air or brake liquid (similar to the parenthetical phrase given in S5.six.step three.1), try brought on brakes. 30 seconds adopting the initiation of these ventilation, the supply range are repressurized for the truck attempt rig (Shape 1). 30 seconds following the initiation of these repressurizing of one’s also provide line, the leading also have line try vented on conditions. This process is conducted either from the commitment and disconnection of one’s also have range coupling or by the use of a device strung during the the production range part of the truck shot rig close to the likewise have range coupling.
S5.6.7 Limit level of prominent diaphragm leakage-types of incapacity/ Comparable level of leakage in the sky chamber with which has one to diaphragm. When it comes to car where the option inside the S5.6(b) might have been opted for, determine the utmost level of common diaphragm leakage-style of inability (otherwise similar number of leakages about sky chamber which has that diaphragm) with regards to the actions set forth in the S5.six.seven.1 courtesy S5.six.7.2.step three.
S5.six.eight.1.step 1 According to after the techniques, influence the fresh new tolerance number of popular diaphragm leaks-particular inability (otherwise comparable level of leaks on heavens chamber with which has one diaphragm) at which new car’s vehicle parking brakes getting unreleasable. With a primary tank program tension from one hundred psi, the engine turned regarding, zero application of any of the vehicle’s brakes, and you may, in case your vehicles was designed to tow a car equipped with sky brakes, a good 50 cubic inch attempt tank attached to the have range coupling, introduce a great leakages-type of inability of the prominent diaphragm (otherwise comparable leakages throughout the heavens chamber with which has you to definitely diaphragm). Use the fresh parking brakes through a credit card applicatoin actuation of the parking braking system handle. Reduce the pressures in most of your car’s reservoirs so you’re able to no, turn on the new system and allow they in order to lazy, and enable new challenges from the automobile’s reservoirs to rise until they balance otherwise till the compressor sealed-out-of area is achieved. At the time, build a production actuation of your own parking braking system manage, and view if all of the mechanized means described from inside the S5.6.step 3.2 will always be actuated and secure the parking brake applications with enough parking retardation force to get to know minimal overall performance specified either in S5.six.1 otherwise S5.six.dos. Do that processes having more and more decreasing or growing membership (almost any can be applied) out-of leakages-sorts of diaphragm disappointments or comparable leakage, to determine the minimum amount of well-known diaphragm leakage-sorts of inability (otherwise comparable level of leakage from the sky chamber which includes you to diaphragm) where most of the mechanized form referred to in the S5.six.step 3.2 are actuated and hold the parking braking system apps with plenty of parking retardation forces to fulfill the minimum overall performance given either in S5.six.step 1 otherwise S5.six.dos.
S5.six.seven.step one.dos At quantity of well-known diaphragm leakages-style of failure (or similar number of leakages from the air chamber that features one to diaphragm) calculated in the S5.6.7.step one.step one, and making use of the second techniques, influence the tolerance restrict reservoir rate (inside psi each and every minute). With a first reservoir program stress of one hundred psi, the fresh engine-turned regarding, zero applying of the car’s brakes and you can, in case the vehicle was designed to tow a car equipped with sky brake system, an effective fifty cubic inches take to reservoir linked to the likewise have line coupling, make an application actuation of one’s vehicle parking brake manage.