Conducting A Proper Tractor-trailer Wheel And Tire Inspection (2025)

A proper tractor-trailer wheel and tire inspection is a critical safety task regulated by federal standards to prevent blowouts, accidents, and CSA score penalties. A comprehensive inspection involves assessing tread depth, air pressure, sidewall integrity, and wheel hardware. 1. Verify Minimum Tread Depth

Federal law mandates specific tread depths for different axles. Use a tread depth gauge for accurate measurements in several major grooves: A proper tractor-trailer wheel and tire inspection is

Minimum depth of 4/32 inch . These tires must be brand new and cannot be retreads. Verify Minimum Tread Depth Federal law mandates specific

Relying on a "thump test" is unreliable. Always use a calibrated pressure gauge while the tires are cold—meaning the vehicle has been stationary for at least 3 hours. Proper Pre-trip Tire Check Relying on a "thump test" is unreliable

Minimum depth of 2/32 inch . These may be retreads as long as they meet depth and integrity requirements. 2. Measure Cold Tire Pressure