The OMSI groups for combined drive systems, mechanical and hydrostatic, are suspended with their flexible mounts to the chassis frame between the transmission and differential of the truck.
They are set up to couple a hydraulic pump and hydraulic motor that, when connected through a hydraulic circuit, permits the conversion of the vehicle’s traction from mechanical to hydrostatic.
They are designed for vehicles calling for very low forward speeds and easy control during work (hydrostatic), and requiring that mechanical drive be restored during transfer so that top speed can be reached.
An additional output, used as a power take – off at constant speed, eliminates the need for an auxiliary engine.