A floor cover arrangement for covering an underfloor space of a passenger conveyor includes a plurality of cover plates configured to be installed such that the they adjoin each other in a sequence along a longitudinal direction of the underfloor space and form a walking surface covering the underfloor space; a frame comprising a frame rail extending underneath the multiplicity of cover plates in the longitudinal direction; and a plurality of connectors, each connector being configured for fixedly connecting one of the cover plates with the frame. Each connector cooperates with the frame rail such that the connector is displaceable in the longitudinal direction and is fixed in both directions orthogonal to the longitudinal direction, and when arranged at a fixation location associated to one of the cover plates, cooperates with the associated cover plate in a form-fitting manner such that the cover plate is fixed in a direction orthogonal to the walking surface.