Title: Record the tread depth.
Course: Diesel Equipment Technology I (20107-I) > Section: Preventive Maintenance and Inspection: Servicing the Tires and Wheels

Recording of tread depth should be taken with one or more of these types of gauges:

- Plastic or metal combination
- Gauge or pressure propelled shaft
- Measure scale displays in U.S. Customary, metric, or both
- Manual or digital.

ASE 1: IV. Suspension and Steering: G. Wheels and Tires (P-1)

Process/Skill Questions:

- Why should a tire be replaced when the minimum tread depth is obtained?
- Why are there different requirements for steer tires and drive tires on heavy duty tractors?
- When are the tread depth requirements on trucks and cars the same?
- Why is it good to remove embedded material in a truck tire?
- Why should tread depth be taken at more than one location on the tire?