Abstract: A work vehicle (1) comprises a mobile frame with a main shaft (2) and a set of support arms adjustable between a lateral operative position, in which the support arms extend laterally of the frame on either side of the main shaft, and an at least partially upward oriented transport position. The support arms have a plurality of mutually pivotable support arm parts which support work modules (11A . . . 11F) placed at a regular distance from each other in order to thereby perform work on a ground surface in the operative position. In the operative position a center of a first of the support arms is situated on a first side of the main shaft at a lateral distance from the main shaft, and in the operative position a center of a second of the support arms is situated on an opposite second side of the main shaft at a lateral distance from the main shaft.