Abstract: A brush cutter includes a center deck that is pivotally coupled to a first wing deck and a second wing deck. Each deck has a hydraulic cutting assembly. A mounting portion can be attached to a front carrier portion of a drive vehicle. The brush cutter has a hydraulic manifold operably coupled to each cutting assembly and configured to be operably coupled to a hydraulic system of the drive vehicle. The manifold includes valves that control the flow of drive fluid to the hydraulic cutting assemblies. Sensing arrangements signal the valves to shut off the drive fluid to the wing decks if the wing decks pivot upward from a lowered position to a first angular position. The sensing arrangements can optionally signal the drive vehicle's hydraulic system to reduce the flow of drive fluid to the hydraulic manifold for each wing deck that pivots upward to the angular position.

Abstract: A safety apparatus for a tool driven by a motor removes motor power under certain circumstances. The tool includes a housing moveable over a ground surface for mounting the tool, and a ground-engaging member moveable relative to the housing and disposed to follow the ground surface as the housing moves over same. The apparatus further includes a sensor for measuring the relative position of the housing relative to the ground engaging member. Motor control apparatus selectively stops the motor upon the ground-engaging member and the housing reaching a predetermined relative position.

Abstract: A vegetation cutter to be mounted on a support vehicle for transport and deployment, has a housing with a rotating blade therein. The housing has a roller mounted for rotation forming the bottom edge of a side of the housing. The roller supports the cutter, allowing the cutter to slide along the ground when moved in a forward direction. When the support vehicle changes direction, the roller rotates, reducing the required force for turning the vehicle and cutter.