S6
dos.cuatro The temperature of every braking system try counted by the an individual plug-sort of thermocouple hung in the lining body out of by far the most greatly piled shoe or mat because the found in Figure 2.
2.5 The rate out-of braking system instrument or disk rotation for the a beneficial dynamometer add up to the pace away from rotation on a vehicle from the confirmed rates are determined because of the whenever good tire radius equivalent with the static stacked distance specified by the tire brand.
Energetic projected luminous lens town means that part of the projection towards the a plane perpendicular towards the light axis of that bit of your own light-giving off epidermis you to delivers light toward photometric try trend, and won’t are installing hole bosses, reflex reflector city, beads otherwise rims which can sparkle or create small aspects of improved strength right down to out of control light off brief parts ( 1/dos training distance inside the try point).
S5.step one.step one Heavens compressor. An air compressor out of sufficient ability to boost air pressure from inside the the production and services reservoirs off 85 psi so you can one hundred psi when the system is functioning from the auto manufacturer’s restrict demanded roentgen.p.meters. inside a period of time, within the mere seconds, dependent on brand new quotient (Real reservoir capability ? 25)/Needed reservoir ability.
(b) For every single truck tractor are manufactured with the otherwise immediately following , each solitary equipment auto are created towards otherwise immediately following , that’s furnished so you can tow various other sky- braked car, is armed with a power routine that’s able to shipping a malfunction signal throughout the antilock brake system(s) on a single or maybe more towed auto(s) (elizabeth.grams., trailer(s) and dolly(ies)) into truck Abs description light regarding the taxi of your own pulling vehicle, and you may shall feel the means for union on the electric circuit on towed auto. Each such as for instance vehicle tractor and unmarried device vehicle shall additionally be armed with an indicator light, p required in S5.step 1.6.2(a), mounted in front of and in obvious look at the fresh new rider, that’s triggered when the malfunction laws routine described above obtains a signal demonstrating an abdominal muscles description on one or more towed vehicle(s). The brand new signal light should are nevertheless triggered as long as a stomach breakdown rule from one or higher towed automobile(s) is obtainable, when the ignition (start) button is within the “on” (“run”) updates, perhaps the motor are running. The fresh indicator light shall be also triggered because the a check off lamp function as soon as the ignition is looked to the new “on” (“run”) updates.
(a) Also the requirements away from S5.2.step 3.2, each truck and you may trailer converter dolly are going to be armed with an enthusiastic exterior antilock breakdown signal lamp that meets the needs of S5.2.3.step three (b) because of (d).
S5.step 3.1 Stopping distance – trucks and you may vehicles. When prevented half a dozen moments each combination of auto variety of, lbs, and rate specified for the S5.step 3.step 1.step 1, regarding the succession specified when you look at the Dining table We, for every single truck tractor are available with the otherwise after February step 1, 1997, and every single device vehicles were created on the or once March step one, 1998, shall visit minimum immediately after for the only the exact distance specified within the Dining table II, measured on the part of which movement of your own provider braking system manage begins, without the the main automobile making the fresh road, and with controls lockup let only as follows:
(b) Getting auto made to pull some other auto equipped with air brakes, the stress throughout the 50-cubic-inch shot reservoir known during the S5.3.cuatro.1(a) getiton.com profile examples should, when measured from the first movement of solution braking system control, slip to 5 psi for the not more than 0.75 mere seconds when it comes to autos and you can vehicles, 1.ten seconds in the case of truck converter dollies, and you may step one.00 seconds in the case of trailers except that truck converter dollies.
S5.4.step one.1 Once burnishing the brand new braking system pursuant to dos.six, retain the brake set up toward inertia dynamometer. Which have an initial brake temperature ranging from 125 °F. and you may two hundred °F., run a halt off fifty yards.p.h., maintaining braking system chamber air stress from the a reliable 20 psi. Gauge the mediocre torque exerted of the braking system ever since the required sky tension was achieved till the brake ends up and you may split because of the fixed stacked tire radius specified from the tire brand to select the retardation force. Repeat the process six minutes, improving the braking system chamber heavens stress because of the ten psi anytime. After each prevent, rotate the latest braking system instrument otherwise disk till the heat of braking system falls in order to between 125 °F. and you can 200 °F.
(a) Except as the given within the S5.6(b) and you can S5.6(c), per vehicles except that a truck converter dolly shall enjoys a beneficial vehicle parking brakes you to within the conditions of just one match the new standards away from:
S5.6.step 3.4 The brand new parking braking system chamber demands to have S5.6.step 3.1 and you can S5.six.step 3.dos decided below. To possess trucks and you may vehicles, that have a primary tank system stress regarding a hundred psi and you may, in the event that designed to tow a motor vehicle armed with air brakes, which have a good fifty cubic inch sample tank linked to the likewise have line coupling, any unmarried leakages sort of failure, in virtually any almost every other brakes, out of an associate built to contain compressed-air or braking system water (consistent with the parenthetical terms specified when you look at the S5.six.step three.1), was introduced in the brake system. The parking brake manage was actuated and also the demands throughout the vehicle’s parking braking system chambers is counted about three mere seconds up coming actuation is set up. To have trailers, to the have line initial pressurized to help you one hundred psi utilizing the have range portion of the truck sample rig (Figure step 1) and you may, in the event that made to pull a car equipped with air brake system, that have a 50 cubic inches decide to try reservoir connected to the rear supply line coupling, any single leaks form of incapacity, in virtually any almost every other brake system, away from an associate built to incorporate compressed-air otherwise brake fluid (consistent with the parenthetical words given within the S5.6.3.1), is delivered regarding brakes. Leading have line coupling is vented on environment and the new demands on the vehicle’s parking braking system spaces is actually counted around three moments upcoming ventilation is established.
S5.six.6.cuatro For trailers, having very first standards since specified into the S5.six.6.5, brand new parking brake system will likely be capable of meeting minimal abilities given in a choice of S5.6.1 otherwise S5.6.dos, that have people solitary leakages-particular failure, in any almost every other brake system, from a member designed to include compressed air otherwise brake liquid (similar to the parenthetical keywords given into the S5.six.step 3.1), at the end of the exam series specified in the S5.6.6.6.
S5.9 Latest assessment. Inspect this service membership brakes towards the standing regarding improvement and you will into braking system indication monitor in accordance with S5.step one.8 and you can S5.dos.dos.
The brand new indicator light are going to be deactivated after the latest examine from lamp function unless of course a truck Stomach breakdown laws try introduce
1.10 Inside the a test except that a fixed vehicle parking test, a trailer tractor is checked at the GVWR of the coupling it so you’re able to a keen unbraked flatbed partial-trailer (hereafter, manage trailer) as the specified for the 1.10.2 to a single.10.4.
2.step 3 Heavens on background weather is led uniformly and you can constantly more than the brand new brake instrument or disk from the a speed out of 2,2 hundred feet for each minute.