Truck Driver how-to
How to Perform a Tractor-Trailer Pre-Trip Inspection
A thorough pre-trip inspection is required by law and is a big part of the CDL skills test.
A thorough pre-trip inspection is required by law and is a big part of the CDL skills test. In short: check; inspect; walk, then complete the remaining steps below.
Step by step
Check the engine compartment: fluid levels, belts, hoses and leaks.
Inspect the cab: gauges, mirrors, wipers, horn, emergency equipment and seat belt.
Walk around the tractor: lights, tires (tread depth and inflation), wheels, lug nuts and suspension.
Inspect brakes: chambers, hoses, slack adjusters and pushrods; perform the air brake check.
Check the coupling system: fifth wheel, locking jaws, kingpin, air and electrical lines.
Walk the trailer: lights, tires, doors, landing gear and cargo securement.
Document defects on the DVIR and don’t drive with out-of-service defects.
Safety reminders for truck drivers
- Follow hours-of-service rules and never drive drowsy
- Complete every pre-trip and post-trip inspection
- Wear your seat belt and avoid phone use while driving
- Use three points of contact getting in and out of the cab
Key terms
CDL · ELDT · Hours of service (HOS) · ELD · Pre-trip inspection · DVIR: see the full truck driver glossary.