Air Brake Manual


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Summary

  1. Name the five basic components of an air brake system.
    1.  
    2.  
    3.  
    4.  
    5.  

  2. The maximum air pressure available for a full brake application depends on?
    1.  

  3. The most common cause of loss of braking effort on air brake-equipped vehicles is?
    •  
    •  

  4. How often should the reservoirs be drained of moisture and sludge accumulation?
    •  

  5. What must the driver do when a low-pressure warning buzzer sounds?
    •  

  6. What is the minimum pressure at which the compressor should cut in?
    • psi

  7. If the safety valve on the reservoir blows, it would indicate what?
    •  
    •  

  8. What is the purpose of a relay valve?
    •  
    •  

  9. How are spring brakes held in the released position?
    •  
    •  

  10. Spring brakes are most effective as a:
    •  
    •  

  11. The function of the slack adjuster is:
    •  

  12. Why should spring brakes be released before making a brake application?
    • psi inminutes for combination units
    • psi inminutes for combination units

  13. Maximum reservoir pressure loss through leaks is:
    •  
    •  

  14. What factor determines how much heat can be absorbed by the brake drum?
    •  
    •  

  15. What is the final check to be made by the driver before leaving the yard?
    •  
    •  

Disclaimer

Rev: 2019