ELDT: Coupling and Uncoupling Copy

The blue gladhand is for the emergency air line connection.

The trailer air supply knob is a red, 8 sided knob on the dashboard.

When coupling, the height of the trailer when the fifth wheel makes contact is very important, and it should not be too high or too low.

Once coupled, there should be a gap between upper 5^th wheel plate of the tractor and the trailer apron plate.

Once the tractor and trailer are coupled, the driver must use a flashlight to check that the fifth wheel locking jaws are secure and locked around the kingpin.

When uncoupling a tractor-trailer, the tractor air and electrical lines should be disconnected and left hanging to the ground.

It is the driver’s responsibility to perform vehicle coupling of a tractor trailer.

It is not important for a driver to perform coupling procedures in a step-by-step sequence.

Gladhands are air connection handles that are usually red and blue.

When coupling a tractor and trailer, the tractor should be positioned squarely and front of the trailer.