A quick-change system for a sweep including a sweep with a neck and a removable wedge. The neck serves to couple the sweep to a cultivator shank and comprises an inner surface with at least one lug that fits in at least one hole of the cultivator shank, and side flaps configured to clasp said cultivator shank. The removable wedge is inserted between the side flaps and the cultivator shank and holds the cultivator shank against the inner surface of the neck. The combination of the lug fitted in the hole of the cultivator shank and the removable wedge inserted in the neck makes it possible to retain and fasten the sweep to the cultivator shank. A tool disassembles the sweep of the cultivator shank.
