provenjohn
regular
Reged: 12/05/2004
Posts: 302
Loc: Sunny Devon
|
|
Just purchased boat with ST4000 fitted, used loads before with no prob's.
However, whenever I press auto it turns wheel hard over & seems to keep trying to turn wheel further !
Am I missing something obvious ?
|
Robin2
regular
Reged: 20/12/2001
Posts: 639
Loc: Malahide, Ireland
|
|
Is there a rudder position indicator? It may be disconnected from the rudder so the unit is getting no feedback.
Also, it is possible to connect the indicator wires back-to-front so that it works properly when the rudder position indicator is fitted upside-down. If the wires were disconnected, they may have been reconnected incorrectly.
I think it will work if there is no rudder position indicator, in which case it will be trying to align the boat with a course, but, of course, if the boat is tied up at the dockside nothing will happen. This might lead you to suspect that the fluxgate compass is reading incorrectly. It is a separate unit (unlike a tiller pilot) and maybe there is some iron near it, or it may be disconnected.
What happens if you switch it on without locking the drive belt? Does the motor continue to turn indefinitely.
Finally, note that when you power it up it turns the belt a little bit so that every part of the belt gets used. So you should not have the drive locked when you power up.
Finally, finally, is it possible there is a power supply problem (loose connection etc) so that switching on Auto causes it to re-start.?
--------------------
Orange
|
JamesFrance
regular
Reged: 24/10/2006
Posts: 220
Loc: Carcassonne & Sant Carles
|
|
My current boat was delivered with this problem, poor commissioning by a Spanish boatyard.
The connections were reversed, so it just tried to correct course changes in the wrong direction making the boat turn even more. A 6000, but could happen with a 4000 too.
Swapping the two wires sorted it easily enough.
--------------------
James
Dolphin of Menai
Beneteau Oceanis 311.
|
Morgana
regular
Reged: 28/08/2003
Posts: 12278
Loc: East Coast
|
|
Quote:
Finally, note that when you power it up it turns the belt a little bit so that every part of the belt gets used. So you should not have the drive locked when you power up.?
I never knew that..... great tip... thanks!
--------------------
Bored?.... why not read my blog .... its the developing story of the trials and tribulations of boat ownership!
|
jackho
regular
Reged: 22/03/2003
Posts: 248
|
|
Not sure about 4000 system but if you have a plotter interfaced and it still set to navigate you autohelm may be attempting to track onto the pre existing route.
|
provenjohn
regular
Reged: 12/05/2004
Posts: 302
Loc: Sunny Devon
|
|
Quote:
My current boat was delivered with this problem, poor commissioning by a Spanish boatyard.
The connections were reversed, so it just tried to correct course changes in the wrong direction making the boat turn even more. A 6000, but could happen with a 4000 too.
Swapping the two wires sorted it easily enough.
This is what Raymarine have suggested !
New plotter etc just fitted last week, electricians coming back tomorrow afternoon so will report back on the outcome 
|
Billjratt
regular
Reged: 09/09/2004
Posts: 871
Loc: Prestwick
|
|
Hold on. If it was working when you got it - what has changed? Where is the fluxgate and what have you put near it. Any other changes you have made ? Did you actually see it working? Fill in ALL the blanks before tearing the place apart/replacing. If neccessary, get the previous owner to demonstrate it (again).
|
provenjohn
regular
Reged: 12/05/2004
Posts: 302
Loc: Sunny Devon
|
|
Quote:
Hold on. If it was working when you got it - what has changed? Where is the fluxgate and what have you put near it. Any other changes you have made ? Did you actually see it working? Fill in ALL the blanks before tearing the place apart/replacing. If neccessary, get the previous owner to demonstrate it (again).
This is first time I have used it !
Purchased from yacht brokers
|
provenjohn
regular
Reged: 12/05/2004
Posts: 302
Loc: Sunny Devon
|
|
Electrician had wired the motor back to front
|
JamesFrance
regular
Reged: 24/10/2006
Posts: 220
Loc: Carcassonne & Sant Carles
|
|
Good to hear you got it sorted. If you have an electric anchor winch, see which way it turns when you press the down button LOL. I had that wrong too with the same solution.
In my case they were factory fitted extras, which presumably the dealer is meant to check.
--------------------
James
Dolphin of Menai
Beneteau Oceanis 311.
|
Previous
Index
Next
Threaded
Edit
Reply
Quote
