an apparatus in the form of a trailer for handling and transporting , in a fully assembled state , a machine having a double frame such as a conventional concrete finishing machine is disclosed . the apparatus features a chassis , a scissors lift mounted on the chassis and a pair of spaced guideways for supporting a double frame thereon rotatably attached to the upper end of the lift . eye hooks for locking the guideways relative to the chassis to prevent rotation of the guideways while the apparatus is in transport are also disclosed . the disclosed apparatus also features a pair of plates slidably carried in the guideways and an adjustable worm gear assembly for moving the plates within the guideways to transfer the load represented by double frame when loading or unloading the same .