A rigid height control system configured to be coupled to a header includes a rigid arm pivotally coupled to a shaft. The rigid arm includes an upper end and a lower end, wherein the lower end is configured to engage a ground surface. The rigid height control system includes a metal channel guide coupled to the shaft and a magnet embedded within the rigid arm adjacent the upper end. The magnet is configured to keep the rigid arm attached to the metal channel guide via a magnetic force so that the lower end engages the ground surface when the agricultural harvester travels in a forward direction. The magnet is configured, when the agricultural harvester travels in a reverse direction causing a force exerted by the ground surface on the rigid arm to exceed the magnetic force, to allow a release of the rigid arm from the metal channel guide.

A lifting system for an agricultural implement having a carrier frame and a header frame includes a float link, a sliding link, and a limiter link. The float link has a first end pivotably coupled to the carrier frame and a second end pivotably coupled to the header frame to movably couple the header frame to the carrier frame. The sliding link has a first end operably coupled to the header frame and defines a guide slot proximate a second end. The limiter link has a first end movably coupled to the guide slot and a second end spaced from the first end. The limiter link is pivotably coupled to the carrier frame between the first end and the second end and is movable to control relative movement between the header frame and the carrier frame.

A lifting system for an agricultural implement having a carrier frame and a header frame includes a float link, a sliding link, and a limiter link. The float link has a first end pivotably coupled to the carrier frame and a second end pivotably coupled to the header frame to movably couple the header frame to the carrier frame. The sliding link has a first end operably coupled to the header frame and defines a guide slot proximate a second end. The limiter link has a first end movably coupled to the guide slot and a second end spaced from the first end. The limiter link is pivotably coupled to the carrier frame between the first end and the second end and is movable to control relative movement between the header frame and the carrier frame.

The disclosed subject matter is directed to an electric lawn machine and method for use. The machine can include a housing and a tool, such as a lawnmower blade. A front pair of drive wheels, rear pair of drive wheels, and a storage surface/wheels can be connected to the housing. The housing can be configured to be placed upon a ground surface in two different positions: a use position in which the front pair of drive wheels and the rear pair of drive wheels contact the ground surface; and, a storage position in which the rear pair of drive wheels and the storage surface/wheel(s) contact the ground surface. A handle can be provided that is moveable between a use position, storage position, and an intermediate position in which the machine can be pulled/pushed around into and out of storage by the handle.

The disclosed subject matter is directed to an electric lawn machine and method for use. The machine can include a housing and a tool, such as a lawnmower blade. A front pair of drive wheels, rear pair of drive wheels, and a storage surface/wheels can be connected to the housing. The housing can be configured to be placed upon a ground surface in two different positions: a use position in which the front pair of drive wheels and the rear pair of drive wheels contact the ground surface; and, a storage position in which the rear pair of drive wheels and the storage surface/wheel(s) contact the ground surface. A handle can be provided that is moveable between a use position, storage position, and an intermediate position in which the machine can be pulled/pushed around into and out of storage by the handle.

A method for dynamically operating a header float system of an agricultural vehicle having a header movably mounted to a frame by an actuator and a flotation adjustment system that relies on ground-contact force measurement. The method includes: determining an initial zero value load sensor output signal representative of an initial position of the header raised out of contact with the ground surface, calibrating the sensor with the initial zero value, operating the header to process a crop material, detecting a subsequent position of the header out of contact with the ground surface, determining a subsequent zero value representative of the subsequent position of the header, and re-calibrating the sensor with the subsequent zero value. Also, an agricultural vehicle having a header operated as described above.

An electric mower includes: a body; a battery on the body; a cover including: a back wall backward of the battery; and a left side wall and a right side wall each extending forward from the back wall, the cover covering at least a portion of the battery; at least one motor drivable by the battery; and at least one controller disposed between the battery and at least one of the left and right side walls and configured to control the at least one motor.