The following safety checks must be carried out weekly or before each transportation (whichever occurs first):

Check the tire pressure and adjust it to the recommended level by the tire manufacturer;

Check the tightness of the tire screws;

Check if there is any air leakage in the braking system and test whether it can brake;

Check the tightness of all nuts, screws, and bolts in the suspension;

Check the braking connections of the tractor and semi-trailer;