System PartsCâu 15 / 60
What is the purpose of the slack adjuster?
a.To adjust the clearance between the brake shoes and the drum
b.To store extra compressed air
c.To measure the vehicle's stopping distance
d.To warn the driver when the brakes are hot
Giải thích
The slack adjuster connects the brake chamber pushrod to the S-cam and adjusts the clearance between the brake linings and the drum. As linings wear, the adjuster keeps them at the proper distance. Manual slack adjusters must be checked and adjusted, while automatic ones self-adjust.
Luyện miễn phí toàn bộ 60 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- What does the application pressure gauge show?
- What does the brake pedal (foot valve) do in an air brake system?
- What is the function of the brake chamber and pushrod?
- What controls the parking brakes on a vehicle with air brakes?
- Why should you NOT use the parking brakes if the brakes are very hot, such as after coming down a steep hill?
- What is the trailer hand valve (trolley valve) used for?
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