Hi,<br /><br />I got an old ('75) Benmar Course Setter 21 autopilot when I bought my second hand boat, but I have no User's manual for the control unit (I do have it for the power unit conected to the hydraulic steering system).<br /><br />Could anyone help me with this? - I'm not sure I'm using the control unit in the right way, as the boat does not take the right course.<br /><br />Thanks in advance.