Explain what you inspect, what defect you are checking for and why it matters.

Prepare the engine, cab, lights, steering, suspension, brakes, tires, coupling, trailer, emergency equipment and air-brake checks for the skills test.

Open CDL path Start free practice

Engine compartmentLeaks, belts, hoses, fluids and secure components

SteeringGear box, linkage, joints, hoses and play

SuspensionSprings, bags, hangers, U-bolts and shocks

BrakesLines, chambers, adjusters, drums/discs, linings and leaks

Wheels and tiresTread, inflation, sidewalls, rims, lugs, hubs and dual spacing

CouplingFifth wheel, kingpin, jaws, release, platform, lines and landing gear

Cab and controlsSeat belt, mirrors, gauges, warning devices, steering and brake checks

Lights and emergency gearAll required lamps, reflectors, extinguisher and warning devices

Use a repeatable script

Name the component, point to it, state what must be secure or undamaged, identify leaks or wear, and explain the safety function. Practice in the exact test vehicle.