Answer :
The given instructions describe the process of checking the brake system of a tractor-trailer by releasing the trailer emergency brake while leaving the tractor parking brake out and gently pulling against the brakes in low gear.
Step 1:
The given instructions describe the process of checking the brake system of a tractor-trailer.
Step 2:
To perform the brake system check, the first step is to ensure that the air pressure is at a normal level. This ensures that the brakes will operate properly. Next, the trailer emergency brake is released, allowing the trailer brakes to be engaged. However, the tractor parking brake is left out, allowing the tractor to move. By pulling gently against the brakes in low gear, any abnormalities or malfunctions in the brake system can be identified. If there are any issues, such as dragging brakes or uneven braking, they can be addressed and repaired to ensure safe operation of the tractor-trailer.
Learn more about parking brake.
brainly.com/question/4236794
#SPJ11
The correct answer describes A) how to test the tractor parking brakes by releasing the trailer emergency brake and pulling gently against the brakes in low gear. The other options involve different braking tests such as checking the emergency, trailer service, and service brakes in various manners.
Check for normal air pressure, release the trailer emergency brake but leave the tractor parking brake out, pull gently against the brakes in low gear. This best describes A) How you can test the tractor parking brakes
- How you can test the tractor parking brakes: Engage the tractor parking brake and try to pull against it gently to check if it holds the vehicle in place.
- How you can test the emergency brakes: This involves releasing all other brakes and engaging the emergency brake to check its effectiveness.
- How you can test the trailer service brakes: Pulling gently in low gear to verify if the trailer brakes respond as expected under control.
- How you can test the service brakes: Typically involves moving the vehicle forward slowly and applying the brakes to ensure all wheels stop effectively without pulling to one side.
complete question:
Check for normal air pressure, release the parking & emergency brakes, move the vehicle forward at 3-5 mph, then push in the foot brake and clutch. This best describes:
a. How you can test the tractor parking brakes
b. How you can test the emergency brakes
c. How you can test the trailer service brakes
d. How you can test the service brakes
