Floor cleaning system

FIG. 1 is a front perspective view of our design;

FIG. 2 is a rear perspective view of our design;

FIG. 3 is front view of our design;

FIG. 4 is a rear view of our design;

FIG. 5 is a first side view of our design;

FIG. 6 is a second side view of our design;

FIG. 7 is a top view of our design; and,

FIG. 8 is a bottom view of our design.

The broken lines depict portions of the floor cleaning system in which the design is embodied that are not considered part of the claimed design.