Abstract: A screen wiper arrangement is provided including a window screen and a screen wiper for cleaning the window screen, wherein the window screen is arranged in an opening of a cabin and inserted in a window frame, and wherein the window screen includes at least one screen portion which can be moved between an open and a closed position. The window screen includes an electrically conductive element coupleable to an electrical circuit which has at least a first state in response to a first position of the at least one screen portion and a second state in response to a second position of the at least one screen portion. One or more contact points are available for detecting if the electrical circuit is in the first or the second state, and a wiper control element is provided which controls the activation of the screen wiper system.

Abstract: An electric operating system for operating at least one electric equipment article for a work machine is provided. This electric operating system includes a flywheel generator for generating electric power needed for the operation of the at least one electric equipment article. Further, the system includes a power electronic device connected to the output of the flywheel generator for adapting a voltage level provided by the flywheel generator to a voltage level required for the operation of the at least one electric equipment article. Finally, the system includes a connector device adapted for to be connectable to the power electronic device and the at least one electric equipment article when the at least one electric equipment article is attached to, or arranged at, the work machine for providing the at least one electric equipment article with electric power at the adapted voltage level.

Abstract: An electric operating system for operating at least one electric equipment article for a work machine is provided. This electric operating system includes a flywheel generator for generating electric power needed for the operation of the at least one electric equipment article. Further, the system includes a power electronic device connected to the output of the flywheel generator for adapting a voltage level provided by the flywheel generator to a voltage level required for the operation of the at least one electric equipment article. Finally, the system includes a connector device adapted for to be connectable to the power electronic device and the at least one electric equipment article when the at least one electric equipment article is attached to, or arranged at, the work machine for providing the at least one electric equipment article with electric power at the adapted voltage level.

Abstract: A screen wiper arrangement is provided including a window screen and a screen wiper for cleaning the window screen, wherein the window screen is arranged in an opening of a cabin and inserted in a window frame, and wherein the window screen includes at least one screen portion which can be moved between an open and a closed position. The window screen includes an electrically conductive element coupleable to an electrical circuit which has at least a first state in response to a first position of the at least one screen portion and a second state in response to a second position of the at least one screen portion. One or more contact points are available for detecting if the electrical circuit is in the first or the second state, and a wiper control element is provided which controls the activation of the screen wiper system.

Abstract: A door locking arrangement is provided for a door of a work machine for holding the door in an open position, wherein the door is pivotably connected to a cab wall. The door locking arrangement includes a first holding element and a second holding element forming a releasable connection for holding the door in its open position, wherein one of the two holding elements is arranged at an outside of the door facing the cab wall when the door is in its open position and the other holding element is arranged at the cab wall. An electric actuator is provided for releasing the releasable connection by separating the first holding element from the second holding element when the door is to be moved from its open position to its closed position.