Abstract: A tractor and a loader implement detachably mounted thereon have releasable front and rear locks at corresponding pairs of legs depending from the loader frame. A loader bucket on the boom assembly and a stand on the frame cooperate to support the attachment after removal from the tractor. Hydraulic piston-cylinder assemblies, normally used to raise and lower the boom relative to the frame, are used to position the frame and to lower it into place during the mounting procedure. All parts of the attachment are guided properly onto the tractor without aid of the tractor or any parts thereon.