Re: Auto pilot - Santorin

Judy and Bill aboard SV BeBe <yahoogroups@...>

If you have a Raymarine Autohelm drive unit the cause may be a faulty clutch. Whether you have the Raymarine linear drive or the rotary drive, they take a 12 Volt DC clutch. Care has to be taken on a 24 Volt boat to wire this clutch correctly. All of the Raymarine Course computers I have seen have a method of selecting the voltage for the clutch...I know this because I mistakenly selected 24 volts and burned the 12 volt clutch up.

When the clutch fails, the clutch will slip when hot and the heading will move off course until the computer alarms. The fact that yours is infrequently failing, makes me assume it is the clutch. You can replace the clutch in the drive unit or send it to a Raymarine repair depot and have it replaced. I noticed an "exploded view" of a Raymarine Linear drive (Raymarine autopilotdrive.doc)in the files section of this website. I converted the Word file to a PDF: Raymarine autopilotdrive.pdf and added it to the same section at:

Hopefully Jose or Gary Silver can delete the larger MS Word file.

Hope this helps.

BeBe, SM2k, #387
Currently Kas, Turkey

--- In amelyachtowners@..., "belitbh" <belitbh@...> wrote:

Hello, it looks like our auto pilot is now 'tired' after 20 years in service, in 20kts winds and 1 mtr waves it works 100%, but in flat sea and 0 wind it can't keep course for a minute (the alarm will only start about 2mins after loosing course when the boat is already 90-180deg off course), sometimes when sitting on the helm and observing the loosing of course at early stage, assisting by slight manual pressure on the helm will take it back to action.
a. have anyone experienced the same?
b. assume we will have to replace the unit (as some told us already) - what new ray marine unit will be most suitable for Santorin?

Best regads

Join { to automatically receive all group messages.