The invention relates to a drive system for a motor-operated functional device, which can be used as a multi-function or combination device for soil working or turf care such as scarifying, aeration, chopping, grass mowing, rolling, compacting, edging, or cleaning work, such as snow blowing, sweeping, or for emergency service, such as water pumping, power supply, or the like, comprising a primary drive (19, 20), two bearing modules (B, D) arranged on a base frame of the functional device, and a drive shaft (82), which is rotatably supported on the base frame by means of the bearing modules (B, D) and on which the particular working device (90) is arranged in a rotationally fixed manner, wherein the base frame has two mounting or bearing plates laterally spaced apart for accommodating the bearing modules (B, D), which mounting or bearing plates extend perpendicularly to the axis of rotation of the working device (90) that is being used. According to the invention, in order to be able to change the provided wor