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6.eight.2.step 1 With regards to the after the techniques, determine the fresh new tolerance number of common diaphragm leakage-types of failure (otherwise comparable quantity of leakage regarding the heavens chamber which has you to diaphragm) of which brand new automobile’s vehicle parking brake system feel unreleasable. With a first reservoir program and gives line pressure regarding one hundred psi, zero application of some of the car’s brake system, and you can, when your car was created to pull a motor vehicle armed with heavens brakes, a beneficial 50 cubic inch test tank connected to the also have range coupling, present good leakage-sorts of incapacity of your own common diaphragm (otherwise comparable leakages throughout the air chamber that contains one to diaphragm). Pressurize the production line by the linking the brand new trailer’s front side also provide range coupling into the also provide line part of the trailer try rig (Shape 1) on regulator of the truck attempt rig place at the 100 psi, and find out whether or not every technical form regarded from inside the six.step three.2 are nevertheless actuated https://datingmentor.org/pl/hitch-dating-recenzja/ and you can keep the parking braking system apps with enough parking retardation forces to fulfill the minimum results specified in both 6.1 or six.dos. Do this techniques having more and more decreasing otherwise broadening accounts (any is applicable) out of leakage-variety of diaphragm problems or similar leakages, to choose the lowest quantity of common diaphragm leakages-method of inability (otherwise comparable number of leakages regarding the sky chamber that has had one to diaphragm) from which all of the technical means regarded inside the 6.step 3.dos are actuated and secure the parking braking system applications with enough vehicle parking retardation forces to meet up with minimal overall performance given either in 6.step one otherwise 6.2.
Make a vehicle parking braking system software from the ventilation the leading likewise have range coupling into the conditions, and reduce the new demands throughout of the automobile’s reservoirs so you can zero
6.eight.dos.dos At quantity of common diaphragm leakages-kind of inability (or comparable amount of leaks regarding the air chamber which has that diaphragm) computed within the six.seven.2.step 1, and ultizing the second processes, determine the threshold restrict reservoir leakage speed (when you look at the psi for each minute). Having an initial reservoir system and offer range stress from 100 psi, no applying of the vehicle’s brake system and, in the event your vehicles was designed to pull a car equipped with sky brake system, good fifty cubic inches try reservoir linked to the buttocks have line coupling, create a vehicle parking braking system application by ventilation leading also have line coupling into conditions. Dictate the maximum reservoir leakages rate (in the psi a minute), the restrict rate out-of reduced total of air pressure off any of the vehicle’s reservoirs one overall performance then parking brake application.
6.eight.2.step three Making use of the adopting the process, a beneficial leakage-type inability of your own well-known diaphragm (otherwise equivalent leaks on the air chamber who has you to definitely diaphragm) you to causes an optimum reservoir leakages rate which is around three times brand new tolerance restrict tank leakage rate calculated inside the six.seven.2.2. That have an initial tank system and offer line tension of 100 psi, no applying of all car’s brakes and, if the vehicle was created to pull an automobile armed with heavens brake system, a good 50 cubic inches decide to try tank linked to the butt also provide range coupling, create a vehicle parking braking system software because of the ventilation leading supply range coupling to the surroundings. Determine the most tank leakages rate (within the psi a minute), the limit rates away from reduction of heavens pressure of some of the car’s reservoirs you to definitely results upcoming vehicle parking brake app. The degree of common diaphragm leakage-method of incapacity (otherwise equivalent quantity of leakage regarding the air chamber that has one diaphragm) of the that it tank leakage speed ‘s the peak that’s for usage in alternative set forth into the 6(b).
7 Crisis brakes for trucks and you will busses. 1, adjusts with the criteria out-of eight.step 1 using eight.step three. not, the vehicle part of an automobile transporter need not meet with the try out standards regarding eight.step 1 and you may seven.3.
