An automated guided trolley for transporting and/or handling a load, comprising a main frame for receiving said load, said main frame being made of a peripheral frame with two cross members connecting two side longitudinal members, and a supporting frame, said trolley comprising a first walking beam and a second walking beam extending respectively forward and backward of said trolley or vice versa, said first and second walking beams being pivotally mounted with respect to the main frame respectively about a first axis and a second axis, said first axis and said second axis being fixed to a side longitudinal member of the main frame, said first walking beam having a first arm extending from said first axis towards the outside of said trolley, equipped with at least one idler wheel, and a second arm extending from said first axis towards the inside of said trolley, mounted on two differential drive wheels, said second walking beam having a first arm extending from said second axis towards the outside of said trolley, equipped with at least one idler wheel and a second arm extending from said second axis towards the inside of said trolley, said trolley comprising means for securing the second arm of said second walking beam to the second arm of said first walking beam comprising: - means for supporting said second arm of said second walking beam on the second arm of said first walking beam comprising a pin extending substantially perpendicular to the second arm of said second walking beam, or vice versa to the second arm of said first walking beam, said pin at least partially penetrating into a hole formed in said second arm of said first walking beam, or vice versa in said second arm of said second walking beam, wider than said pin, or - at least a vertical connecting rod. said trolley comprising a first walking beam and a second walking beam extending respectively forward and backward of said trolley or vice versa, said first and second walking beams being pivotally mounted with respect to the main frame respectively about a first axis and a second axis, said first axis and said second axis being fixed to a side longitudinal member of the main frame, said first walking beam having a first arm extending from said first axis towards the outside of said trolley, equipped with at least one idler wheel, and a second arm extending from said first axis towards the inside of said trolley, mounted on two differential drive wheels, said second walking beam having a first arm extending from said second axis towards the outside of said trolley, equipped with at least one idler wheel and a second arm extending from said second axis towards the inside of said trolley, said trolley comprising means for securing the second arm of said second walking beam to the second arm of said first walking beam comprising: - means for supporting said second arm of said second walking beam on the second arm of said first walking beam comprising a pin extending substantially perpendicular to the second arm of said second walking beam, or vice versa to the second arm of said first walking beam, said pin at least partially penetrating into a hole formed in said second arm of said first walking beam, or vice versa in said second arm of said second walking beam, wider than said pin, or - at least a vertical connecting rod. - means for supporting said second arm of said second walking beam on the second arm of said first walking beam comprising a pin extending substantially perpendicular to the second arm of said second walking beam, or vice versa to the second arm of said first walking beam, said pin at least partially penetrating into a hole formed in said second arm of said first walking beam, or vice versa in said second arm of said second walking beam, wider than said pin, or - at least a vertical connecting rod.