S6
dos.cuatro The temperature of every brake is actually counted by one plug-form of thermocouple strung in the middle of the liner skin away from one particular greatly loaded shoe otherwise mat since shown inside Figure 2.
dos.5 The pace away from braking system drum or disc rotation on a beneficial dynamometer add up to the pace regarding rotation on the an automobile during the certain speed was calculated by the of course a great tire distance equivalent towards static stacked radius specified of the tire name brand.
Productive projected luminous contact lens town ensures that the main projection into a plane perpendicular for the lamp axis of these piece of light-emitting epidermis you to definitely directs light into photometric try trend, and won’t tend to be setting up gap bosses, reflex reflector area, beads or tires that can sparkle or produce short aspects furfling profile search of enhanced strength down to out of control light out of short portion ( 1/2 studies radius in the decide to try point).
S5.1.step 1 Sky compressor. An air compressor regarding sufficient power to improve air stress into the the production and service reservoirs out of 85 psi so you’re able to a hundred psi in the event that motor is actually doing work on automobile maker’s limitation required r.p.m. inside an occasion, from inside the moments, determined by the newest quotient (Genuine tank capabilities ? 25)/Called for tank capability.
(b) For every truck tractor are formulated towards otherwise after , and each solitary device vehicles are available towards otherwise just after , that is supplied in order to pull several other heavens- braked automobile, should be equipped with a power routine that’s able to providing a breakdown signal in the antilock brakes(s) on one or even more towed car(s) (e.g., trailer(s) and you can dolly(ies)) toward trailer Abs malfunction lamp throughout the taxi of one’s pulling car, and shall feel the means for commitment of the electrical circuit into the towed vehicle. For every single particularly vehicle tractor and you will unmarried product automobile should also be armed with an indication lamp, p needed in S5.step one.six.2(a), mounted in front of plus obvious view of new rider, that is activated whenever breakdown code circuit described over get a rule demonstrating an abdominal muscles malfunction on one or even more towed vehicle(s). New indication light shall will still be activated provided an abdominal muscles dysfunction rule from a single or more towed car(s) exists, as soon as the ignition (start) key is in the “on” (“run”) updates, if the system try running. The fresh sign light will additionally be activated as a out-of lamp form if the ignition try considered brand new “on” (“run”) status.
(a) As well as the requirements from S5.2.step 3.dos, per truck and you can trailer converter dolly will be equipped with a keen exterior antilock breakdown signal light that meets the requirements of S5.2.step three.step 3 (b) as a result of (d).
S5.step 3.1 Finishing range – automobiles and you may vehicles. When prevented half dozen times for every single mix of automobile particular, weight, and rate given inside S5.step three.step 1.1, regarding succession specified inside the Desk I, for each truck tractor are produced towards the or after March step one, 1997, and every solitary equipment vehicle are made into or immediately following March 1, 1998, will stop at minimum once from inside the only the exact distance given into the Table II, counted regarding area where way of services braking system handle initiate, without any area of the car making the newest road, sufficient reason for controls lockup let simply the following:
(b) To own auto designed to pull another vehicles armed with sky brake system, the pressure regarding the fifty-cubic-inch test reservoir described from inside the S5.step 3.cuatro.1(a) will, when counted on the basic direction of solution brake handle, slide so you’re able to 5 psi within the not more than 0.75 mere seconds when it comes to vehicles and you will vehicles, 1.10 mere seconds when it comes to truck converter dollies, and step one.00 seconds in the example of trailers apart from trailer converter dollies.
S5.4.step one.step one Just after burnishing the newest brake pursuant to help you dos.6, take care of the brake assembly for the inertia dynamometer. Which have a primary brake temperature anywhere between 125 °F. and you may 2 hundred °F., make a halt from fifty meters.p.h., maintaining braking system chamber sky tension from the a constant 20 psi. Measure the mediocre torque exerted because of the brake since the desired air pressure are attained up until the braking system closes and you will separate by static stacked tire distance specified of the tire brand name to search for the retardation force. Recite the procedure half a dozen moments, improving the brake chamber sky tension by the 10 psi whenever. After each and every prevent, become the fresh braking system guitar or disc till the heat of one’s braking system falls to ranging from 125 °F. and you may two hundred °F.
(a) But as the considering in the S5.6(b) and you may S5.6(c), each vehicles except that a trailer converter dolly will provides a great vehicle parking brake system that within the criteria of 1 meets the new standards regarding:
S5.six.step three.cuatro The parking braking system chamber demands to possess S5.six.3.1 and you can S5.6.3.2 have decided as follows. Getting vehicles and you will vehicles, having a first tank system pressure away from 100 psi and you may, if the built to pull an auto equipped with heavens brakes, having an effective fifty cubic inches sample tank linked to the also provide line coupling, any unmarried leakages particular inability, in virtually any almost every other brake system, away from a member built to incorporate compressed air otherwise braking system fluid (consistent with the parenthetical phrase given from inside the S5.6.step three.1), are produced from the brakes. The fresh new vehicle parking brake handle is actuated plus the pressures regarding the vehicle’s parking brake chambers are counted about three mere seconds following actuation is established. Having trailers, to the have range initially pressurized to one hundred psi using the supply line portion of the trailer take to rig (Profile step one) and, when the designed to tow a vehicle equipped with heavens brakes, having a great fifty cubic inch shot tank attached to the rear likewise have line coupling, people solitary leaks style of failure, in just about any most other brake system, out of an associate built to incorporate compressed air or braking system water (similar to the parenthetical keywords given in S5.six.3.1), is actually lead throughout the brake system. The leading also have range coupling is vented with the environment and the brand new demands from the vehicle’s parking braking system compartments are mentioned about three moments up coming ventilation is established.
S5.6.six.cuatro Having trailers, having initially requirements once the given during the S5.six.six.5, the brand new parking brake system should be with the capacity of meeting minimal overall performance specified in both S5.six.step one otherwise S5.6.2, that have people single leaks-form of incapacity, in virtually any almost every other brakes, out-of an associate built to have compressed air or braking system water (similar to the parenthetical statement specified in the S5.six.3.1), at the end of the exam sequence specified during the S5.six.6.six.
S5.9 Latest examination. Examine the service brakes into the condition out-of modifications and you can on brake signal display screen prior to S5.step 1.8 and you can S5.dos.2.
New signal light are going to be deactivated after the view of light function unless a trailer Stomach breakdown signal is actually introduce
step 1.ten In an examination besides a static parking take to, a truck tractor was tested in the their GVWR from the coupling it to an enthusiastic unbraked flatbed partial-truck (hereafter, control truck) just like the specified when you look at the 1.10.2 to one.ten.4.
2.step 3 Sky at the background weather is directed evenly and you may consistently more this new brake drum otherwise disc from the a velocity out of 2,200 ft each and every minute.