S6.dos.cuatro The temperature of each braking system are counted by a single plug-type thermocouple strung in the liner surface away from the quintessential heavily loaded footwear or pad just like the found inside the Shape 2.
S6.dos.5 The rate from brake drum otherwise disc rotation on the a good dynamometer corresponding to the speed out-of rotation into the an automobile at certain rate is actually determined of the just in case an excellent tire radius equal towards the static loaded distance given by tire brand name.
Productive projected luminous lens area means that area of the projection for the a plane perpendicular toward lamp axis of this piece of the light-emitting body one to delivers white toward photometric decide to try development, and will not is installing opening employers, reflex reflector town, beans otherwise rims that will sparkle otherwise develop quick regions of increased intensity down seriously to out of control light of small portion ( 1/dos degree distance within the sample part).
step one.1 Heavens compressor. An air compressor out of enough ability to improve heavens tension when you look at the the production and you may provider reservoirs regarding 85 psi to help you a hundred psi in the event that system was operating within vehicles maker’s maximum demanded roentgen.p.m. within a time, for the moments, determined by brand new quotient (Real tank skill ? 25)/Necessary reservoir capacity.
Repeat the method half dozen minutes, raising the braking system chamber air tension from the ten psi each time
(b) For every single truck tractor are produced on the otherwise immediately following , and every single tool auto are produced to the or just after , that is supplied in order to tow another sky- braked vehicle, shall be armed with an electrical routine that’s capable of shipping a malfunction laws on antilock brakes(s) on one or even more towed automobile(s) (e.grams., trailer(s) and you may dolly(ies)) into truck Stomach malfunction light on the taxi of your own towing auto, and you may shall feel the way for relationship associated with the electrical circuit toward towed car. Per instance vehicle tractor and you may solitary tool automobile will additionally be armed with an indicator lamp, p needed in step 1.six.2(a), mounted in front of and in clear view of the japan cupid Recenze fresh new driver, that is triggered if the description laws routine demonstrated significantly more than receives a signal showing a stomach breakdown on one or maybe more towed vehicle(s). The brand new sign lamp shall are nevertheless triggered provided an abdominal muscles breakdown rule from 1 or more towed vehicle(s) is available, if the ignition (start) key is in the “on” (“run”) reputation, whether or not the engine is actually powering. The brand new sign light should also be activated since the a out-of light form as soon as the ignition is considered brand new “on” (“run”) status. The new indicator lamp will be deactivated at the end of the newest evaluate regarding lamp means except if a trailer Stomach breakdown rule was present.
(a) In addition to the requirements regarding dos.3.2, for each and every trailer and you will truck converter dolly should be armed with an enthusiastic additional antilock description indicator lamp that fits the needs of 2.step 3.step three (b) courtesy (d).
3.step 1 Closing distance – vehicles and vehicles. Whenever averted half dozen times for every mix of auto types of, pounds, and you will price given into the step three.1.step one, on series given inside Desk I, for each truck tractor are created into the or immediately following February step one, 1997, and every single equipment auto are available towards otherwise immediately following March 1, 1998, should take a look at minimum after within the only the length specified when you look at the Desk II, measured regarding the area of which path of one’s services braking system control initiate, without the the main car making new highway, with wheel lockup let merely below:
(b) Having car designed to tow various other car equipped with air brake system, the stress on the 50-cubic-inches decide to try reservoir regarded from inside the 3.4.1(a) shall, when measured throughout the first path of your own services brake control, slide to 5 psi from inside the only 0.75 mere seconds in the example of vehicles and you will buses, 1.ten moments when it comes to truck converter dollies, and you can step one.00 moments regarding trailers other than truck converter dollies.
cuatro.step one.step one Immediately following burnishing the brand new braking system pursuant to S6.dos.6, maintain the brake installation towards inertia dynamometer. Which have an initial braking system temperature anywhere between 125 °F. and 2 hundred °F., make a halt regarding fifty m.p.h., maintaining brake chamber heavens pressure at a constant 20 psi. Assess the mediocre torque exerted of the brake from the time the specified air stress is actually achieved until the brake ends and you may divide of the static piled tire radius specified because of the tire name brand to find the retardation push. After every prevent, turn the fresh new brake musical instrument otherwise disc before temperature of the brake falls so you’re able to between 125 °F. and you may 200 °F.
(a) But due to the fact provided into the 6(b) and you may six(c), for each car besides a trailer converter dolly will have an effective parking brakes that according to the conditions regarding S6.step one match the needs of:
six.step three.4 The new parking brake chamber pressures for six.3.1 and you may six.3.dos decided as follows. To own automobiles and you can vehicles, with a first reservoir system stress away from a hundred psi and you can, if built to tow an auto armed with air brakes, which have good fifty cubic inch take to tank connected to the likewise have range coupling, one single leaks method of failure, in virtually any most other brake system, out-of an associate designed to have compressed-air otherwise braking system fluid (consistent with the parenthetical statement specified when you look at the six.step 3.1), try brought about brakes. The latest parking brake control was actuated plus the demands regarding the car’s parking brake spaces are mentioned around three seconds up coming actuation is established. To own trailers, with the have range initially pressurized to 100 psi making use of the also have range part of the trailer shot rig (Shape 1) and you will, in the event the designed to pull a motor vehicle armed with air brakes, which have good fifty cubic inches shot tank attached to the bottom have range coupling, any unmarried leakage sort of incapacity, in any most other brake system, from a member built to have compressed-air otherwise braking system water (consistent with the parenthetical terms specified for the six.step three.1), was delivered regarding the brakes. Leading supply range coupling is ventilated into the ambiance and you may the new challenges regarding automobile’s vehicle parking braking system chambers was counted around three seconds upcoming ventilation is set up.
six.six.cuatro To have trailers, having first standards while the given when you look at the 6.six.5, the fresh new parking brake system will be ready conference the minimum efficiency given either in 6.step one otherwise 6.2, that have one unmarried leaks-types of inability, in almost any most other brakes, out of a part made to contain compressed air otherwise brake fluid (similar to the parenthetical words given inside six.step 3.1), at the conclusion of the exam sequence given into the 6.six.six.
9 Final inspection. Always check the service brake system toward condition away from changes and you can on braking system indication monitor in accordance with step 1.8 and dos.2.
S6.step one.10 When you look at the an examination besides a fixed vehicle parking attempt, a trailer tractor are tested on their GVWR because of the coupling it so you can a keen unbraked flatbed semi-truck (hereafter, manage truck) since given inside S6.step 1.10.dos so you’re able to S6.step 1.10.cuatro.
S6.2.step 3 Sky in the background temperature is brought equally and you can constantly more than the fresh braking system guitar or disc at a speed regarding 2,2 hundred feet a minute.