Proper Techniques for Tightening Lug or Wheel Nuts

Both Technician A and Technician B are correct in their statements about tightening lug or wheel nuts. Let's break down their explanations:

Technician A

Technician A states that when tightening lug or wheel nuts, a torque wrench must be used. This is a crucial step in the process to ensure that the nuts are tightened to the correct specifications and prevent over-tightening or under-tightening.

Technician B

Technician B mentions that an air wrench can be used during the initial tightening process, but the final tightening should always be done with a torque wrench. This is because air wrenches can apply a lot of force quickly, which may lead to over-tightening if not careful. Using a torque wrench for the final adjustments ensures that the nuts are properly tightened.

By combining the techniques suggested by both technicians, you can achieve the best results when tightening lug or wheel nuts. Start with an air wrench for initial tightening, and then finish off the job by using a torque wrench to ensure the nuts are tightened to the correct specifications.