[CA] [CA11] What can I replace an S1 Pilot computer with?

[Chuck - Raymarine - Moderator]

Pete,

Please note that Raymarine does not offer a Type 4 hydraulic pump. A Type 1 hydraulic pump would have been spec'd for use with a S1 autopilot course computer. A simple test of current draw does not require that any hydraulics be disturbed. One need simply disconnect the pump's motor leads from the course computer and then connect them to 12VDC (for a 12VDC pump). The pump's current draw should be measured in both directions. Reversing the pump is accomplish by reversing the power connections to the 12VDC source. A properly functioning Type 1 Pump will draw 1-3 amps when turning the engines. To get the most time, you may want to move the steering fully to one side and then measure the current when shifting the engines to the other side. Should the measured current be within the range specified above, then a course computer replacement would be recommended.