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Old 20-08-2010, 11:26   #1
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anglooff's Avatar

Join Date: May 2007
Location: Boat in Panama
Boat: Vandestadt ketch 42
Posts: 357
Replacement Motor for St4000 Tiller Arm

It would seem that the motor of my ST4000 Tillar arm is "Kaput". The unit is about 5 years old (bought by PO) and when I relaunched about 2.5 years ago the arm didn't work (corrosion on connecting wires) which was simply repaired. Up to a few months ago it worked perfectly and at the end of each visit I disconnect and placed down below. My last visit when I reinstalled it failed to operate. I checked all systems and everything worked to the arm...with the appropriate current level. I left the arm with a exceedingly busy electrictian. Finally he came back to me with the view that the motor wasn't functioning. (I thought is would be connection corrosion; I am always leary of a report that something which was working somehow is broken when not in use...ergo my connection belief). Anyway I have a number of possibilities which I hope some CF members could assist.

I have been generally very happy with the performance of the ST4000. Until now without a problem. I spoke with Raymarine just incase and it was put to me that it would be more realistic to buy a new Arm rather than a motor. It would be their largerst arm X-5 GP.

If I was to go that way...I would still attempt to repair the existing one... as a back up.

Therefore it would seem that Raymarine are not so interested in selling me the necessary motor or are too embarassed to tell me the price. In doing some research I note that B&G sells motors which their blurb state fit most other major brands....Do any of you know if this is true? Has anyone done so and if so how successful?

It seem reasonable to assume that Raymarine, B&G etc source these parts from specialist manufacturers. I attempted to do some reseach and although it would seem there are a number of manufacturers, their websites are not public orientated. When I thought I had found the unit one finds that they don't supply single units and when others would, their online pages used other codes etc which essentially meant I was buying blind and could not or would not confirm whether that I was seeking to buy was actually the replacement part. So has anyone within the CF successfully gone that route and if so how, where and do you have the part no./s?

Finally my steel ketch is very heavy IE 38000lbs, which for the Raymarine GP unit is still way above its stated range. It could be therefore that the arm heroically brought me through difficult seas to safe anchorage and expired much over worked. Which leads me to the possibility of using a more robust and different make of arm. I know that they should be interchangeable and indeed reviewing previous thread/posts in this and other forums, it would seem that this is possible. I would therefore be interested in feedback from anyone who has undertaken this change with a general viewpoint to its success or otherwise and the arm they have or would recommend for my size of boat.

As always my thanks in advance


anglooff is offline   Reply With Quote
Old 20-08-2010, 12:26   #2
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Join Date: May 2007
Location: Colorado; Sailing Sea of Cortez
Boat: Tartan 33R
Posts: 174

Post the numbers on the motor and the dimensions. I may have one.

Capn Dan is offline   Reply With Quote

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