InspectionCâu 29 / 60
How do you test the low-pressure warning signal?
a.By draining the tanks while driving
b.By pulling on the slack adjusters
c.By turning the electrical power on and fanning off air until the warning activates
d.By revving the engine to build pressure
Giải thích
With the key on and enough air in the system, step on and off the brake pedal to reduce tank pressure (this is called fanning off the air). The low air pressure warning signal must come on before the pressure drops below 60 psi. If it does not, the warning is faulty and must be repaired.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
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- For a single vehicle (straight truck), what is the maximum allowable air pressure loss in one minute with the brakes applied?
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