If using plain bearings, the packages for the hydrostatic system and their pipe work at the motors and the oil supply of the plain bearings are part of the scope of supply. Piping between a TOP at the motor and a possible auxiliary package is to be made by the customer. If the auxiliary package is attached to the motor, motor and package will be considered as one unit. In this case there is only one TOP. For this purpose, the motor supplier will supply the necessary drawings and specifications of the interconnecting materials.