step one.6.step three Antilock fuel circuit to possess towed vehicle. For each vehicle tractor were created to your or immediately after March step 1, 1997, and every solitary unit automobile are built towards the or after March step one, 1998, that is provided so you’re able to pull other air-braked vehicle are equipped with one or more electricity circuits giving continuous capacity to the new antilock system to your towed automobile otherwise vehicle after ignition (start) switch is within the “on” (“run”) condition.
step one.7 Service brake end lamp button. A button that bulbs the fresh new avoid lights if the provider braking system handle try statically depressed so you’re able to a place that renders a stress regarding six psi or quicker throughout the service brake spaces.
step 1.8 Brake distribution and you may automated improvement. For every auto can be equipped with a service brake system acting towards the tires.
(a) Brake adjuster.