How do you adjust peterbilt air trac?

To adjust the Peterbilt Air Trac suspension, first, ensure the vehicle is safely parked and on level ground. Use the air control system to adjust the air pressure in the air bags until they reach the desired ride height, which can generally be found in the vehicle's specifications. Additionally, check for any leaks or issues with the air lines and bags to ensure optimal performance. Always refer to the specific service manual for detailed instructions and specifications related to your model.