WORKING EQUIPMENT WITH A LIFT FRAME ASSEMBLY WITH ALIGNMENT CAPABILITIES

A working equipment arranged to be mounted to a vehicle, the working equipment comprising a movable arm for loading and unloading a load carrying object, such as a container, to/from said vehicle. A lift frame assembly is provided (14) comprising a lift frame (16) with an attachment part (18) arranged to be attached to the second end of the movable arm, a pair of upper connectors (20) mounted at opposite sides of an upper part (22) of the lift frame (16), and a pair of lower connectors (24) mounted at opposite sides of a lower part (26) of the lift frame (16), adapted to attach said upper and lower parts (22, 26) of the lift frame (16) to a corresponding upper part (28) and lower part (30), respectively, of the load carrying object. The lift frame assembly (14) further comprises a set of pivotable guiding structures (54) arranged at opposite sides of the lift frame (16). A control unit is configured, during a lift frame alignment procedure, to generate an alignment control signal to move the guiding structures (54) from retracted positions into closed positions where the guiding structures (54) are in contact with side surfaces of the load carrying object (8), wherein, during movement of the guiding structures (54) from the retracted positions into the closed positions, the lift frame (16) are forced to be pivoted in order to be aligned to the side surfaces of the load carrying object (8).