Central Tech Training

Double Clutch:

To engage and then disengage the clutch twice for every gear change.

When double clutching you will push in the clutch, take the gearshift out of gear, release the clutch, press the clutch in again, shift the gearshift into the next gear, then release the clutch.

This is done on standard transmissions which do not have synchronizers in them, like those found in almost all Class A trucks.

CDL:

Commercial Driver's License (CDL)

A CDL is required to drive any of the following vehicles:

• Any combination of vehicles with a gross combined weight rating (GCWR) of 26,001 or more pounds, providing the gross vehicle weight rating (GVWR) of the vehicle being towed is in excess of 10,000 pounds.
• Any single vehicle with a GVWR of 26,001 or more pounds, or any such vehicle towing another not in excess of 10,000 pounds.
• Any vehicle, regardless of size, designed to transport 16 or more persons, including the driver.
• Any vehicle required by federal regulations to be placarded while transporting hazardous materials.