Connecting a Tractor Unit to a Semi-Trailer
Pre-Coupling
Before coupling the driver must ensure: The trailer has a valid mot and the disc is displayed The brake of the semi-trailer is on The 5 th wheel coupling release lever is in the couple position with the operating handle standing out approximately 12”
Coupling Procedure
9 5
1
2
3
4 0 0 0 0
5 1
6 2
7 4
8 5
When coupling a trailer you should work from the front of the vehicle towards the rear
1. Ensure that the semi-trailer lifts as it comes into contact with the tractor head up ramps. 2. After the initial coupling is made, select a low gear and pull forward to establish the correct coupling has taken place (Tug the Trailer Twice). 3. Ensure the tractor handbrake is on. 4. Ensure that the skid plate of the semi-trailer is resting on the 5 th wheel coupling with no gap present. 5. Insert the spring clip into the eye on the 5 th wheel coupling plate. 6. Connect air and electrical lines connecting the furthest away first and ensuring all lines are clean and undamaged. 7. Wind up the landing legs fully – do not allow feet to drag across sloping ground. 8. Release the trailer handbrake.
Please remember to fit the number plate to the trailer
Please ensure you carry out normal vehicle pre-drive checks
Ensure the safety of yourself and others during the Coupling/Uncoupling Procedure
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