S6.dos.cuatro Heat of each braking system are measured by the a single plug-types of thermocouple hung in the lining facial skin out-of by far the most heavily piled footwear otherwise mat as revealed during the Profile 2.
S6.2.5 The rate regarding braking system drum or disc rotation for the an excellent dynamometer equal to the interest rate out of rotation towards an automobile during the certain rate was determined because of the assuming an excellent tire radius equivalent into the static loaded radius given from the tire manufacturer.
Effective projected luminous lens area ensures that the main projection to your an airplane perpendicular on light axis of that bit of white-emitting skin one sends white towards photometric shot development, and will not tend to be installing gap bosses, reflex reflector town, beads otherwise tires which can glow otherwise create quick regions of improved strength down seriously to uncontrolled light regarding quick elements ( 1/dos training radius in the attempt section).
step one.step 1 Sky compressor. An air compressor out-of adequate ability to increase sky pressure inside the supply and solution reservoirs regarding 85 psi to help you 100 psi if the motor is performing at automobile manufacturer’s limit required roentgen.p.yards. within a period of time, inside the seconds, dependent on the latest quotient (Genuine tank capacity ? 25)/Called for reservoir ability.
Repeat the method six minutes, improving the brake chamber sky pressure by the 10 psi each time
(b) For each vehicle tractor are created to your otherwise just after , and every solitary tool car are designed towards the or shortly after , that’s furnished so you can pull some other sky- braked vehicle, should be armed with an electrical circuit that’s with the capacity of providing a fail signal throughout the antilock brake system(s) on a single or higher towed car(s) (e.g., trailer(s) and you will dolly(ies)) on trailer Stomach description light on the cab of your own towing car, and you will shall have the way for relationship on the electrical circuit towards towed automobile. For each instance vehicle tractor and single device car will be also armed with an indicator light, p needed in 1.6.2(a), mounted before along with clear view of brand new rider, that’s triggered once the dysfunction rule routine revealed significantly more than gets a code indicating an abdominal muscles breakdown on one or higher towed vehicle(s). The indication lamp should will always be activated so long as an abdominal muscles dysfunction code from 1 or maybe more towed auto(s) can be obtained, whenever ignition (start) key is in the “on” (“run”) standing, whether or not the engine was running. The newest sign lamp should even be activated due to the fact a check off light means whenever ignition are looked to the “on” (“run”) reputation. The new indicator light will be deactivated at the conclusion of the latest examine from lamp setting except if a trailer Stomach dysfunction signal was expose.
S5
(a) And the standards regarding 2.step 3.2, for each and every trailer and you will truck converter dolly will be equipped with an enthusiastic exterior antilock breakdown indication light that suits the requirements of 2.3.3 (b) compliment of (d).
step 3.1 Closing distance – automobiles and you will busses. When averted half dozen minutes for each and every mix of car particular, lbs, and you will rates specified inside 3.step one.step one, throughout the series given inside Table We, for every single truck tractor are created to your otherwise shortly after March 1, 1997, each single unit vehicles are produced with the otherwise immediately following February 1, 1998, should take a look at the very least just after inside the only the length given during the Desk II, measured from the point at which way of your solution braking system control starts, with no the main car making the latest path, with controls lockup permitted only the following:
(b) Getting vehicle made to tow other vehicles armed with sky brakes, the stress about fifty-cubic-inch test reservoir referred to in step three.cuatro.1(a) should, when counted from the earliest course of the solution braking system handle, slip so you’re able to 5 psi for the not more than 0.75 mere seconds when it comes to trucks and you will busses, 1.ten moments regarding trailer converter dollies, and you can step one.00 mere seconds in the example of trailers apart from trailer converter dollies.
cuatro.1.step 1 Immediately following burnishing the brand new brake pursuant in order to S6.dos.6, take care of the braking system assembly with the inertia dynamometer. That have a first braking system temperature ranging from 125 °F. and you will 2 hundred °F., carry out a stop out of 50 meters.p.h., keeping braking system chamber sky tension in the a constant 20 psi. Assess the mediocre torque exerted by braking system from the time the specified air tension are attained till the brake ends up and you can split of the static stacked tire radius specified of the tire manufacturer to search for the retardation push. After each avoid, change the latest braking system instrument otherwise disc up until the heat of one’s braking system falls to between 125 °F. and 200 °F.
(a) But as considering in six(b) and you can 6(c), for each vehicle apart from a truck converter dolly should has actually a beneficial vehicle parking brake system you to in criteria away from S6.step 1 suits the needs of:
6.3.cuatro The new vehicle parking braking system chamber challenges getting six.step three.step one and you will six.3.2 decided the following. To have automobiles and you can vehicles, having a first tank program tension regarding a hundred psi and you may, when the made to tow a car armed with heavens brake system, that have a good 50 cubic inches shot tank connected to the also provide line coupling, any single leakages kind of inability, in every most other brake system, away from an associate made to have compressed-air or braking system water (consistent with the parenthetical terms specified from inside the 6.step 3 getiton.com PЕ™ihlГЎsit se.1), try delivered on the brakes. The fresh vehicle parking braking system control is actually actuated therefore the challenges regarding the vehicle’s parking brake spaces try mentioned about three mere seconds upcoming actuation is initiated. To have trailers, to your have range initially pressurized so you’re able to 100 psi with the supply line portion of the trailer sample rig (Profile 1) and, if the built to pull a car or truck armed with air brake system, that have an effective fifty cubic inches test tank attached to the rear likewise have line coupling, any single leakages sorts of failure, in just about any most other brakes, out of a part made to contain compressed-air otherwise braking system water (similar to the parenthetical keywords given into the six.3.1), is actually lead regarding brakes. The leading also provide line coupling is actually ventilated on surroundings and the challenges in the car’s vehicle parking brake spaces are counted about three seconds after that ventilation is set up.
six.six.cuatro To own trailers, that have very first requirements as given in the 6.6.5, the new vehicle parking brakes is capable of appointment the minimum show given in a choice of six.step one or six.2, which have people single leakage-types of inability, in any other brakes, out of a part built to contain compressed air or brake liquid (similar to the parenthetical terms specified in the six.step 3.1), at the conclusion of the exam sequence given for the six.6.six.
9 Final evaluation. Examine this service membership brake system towards reputation out of improvement and you will with the braking system indicator display prior to step one.8 and you may 2.dos.
S6.1.10 During the an examination aside from a static parking take to, a trailer tractor is actually tested during the their GVWR from the coupling it to help you an enthusiastic unbraked flatbed semi-trailer (hereafter, control truck) because specified within the S6.step one.ten.2 in order to S6.1.ten.cuatro.
S6.2.step 3 Air on background climate is directed equally and you will constantly more than the fresh new braking system instrument otherwise disc in the a velocity from 2,two hundred ft each minute.