The pump stroke is generated at the bottom of the suction tube by a feed piston controlled by an electric eccentric shaft. The pump is activated by an ON/OFF switch located on the distribution box. The standard unit features an automatic shut-off function that turns off the pump motor when the unregulated pressure is reached and automatically restarts it when the pressure drops. This technology allows, for example, the use of a high-pressure gun for lubricating specific points.
An optional pump design with a signal input allows for automatic switching on and off of the filling pump, for example when a customer uses the minimum and maximum fill level control system.