Which way the Autohelm 4000 fluxgate compass should be fitted in the control unit?

[mariog]

Need to replace the Autohelm 4000 fluxgate compass which is bulit in, in the control unit as I need to replace it after it got loose and the ribbon cable broke. Can somebody tell me which way, orientation, position etc it should be fitted? its similar to the 3000 and even 2000 I think but can't find a service manual fir this model online.

 

[saxonpirate]

Need to replace the Autohelm 4000 fluxgate compass which is bulit in, in the control unit as I need to replace it after it got loose and the ribbon cable broke. Can somebody tell me which way, orientation, position etc it should be fitted? its similar to the 3000 and even 2000 I think but can't find a service manual fir this model online.

This may or may not help you 'mariog'... I had the same problem with an ST3000 control unit some time ago, an "IF" I remember correctly its pretty much determined by the compass gimbals and the lead of the ribbon. I've posted a couple of links for service manuals below. They show the detail you need for either type.

ST4000 http://www.ganssle.com/jack/st4000.pdf

ST3000 http://files.radioscanner.ru/files/download/file13235/autohelm_st3000_-_service_manual.pdf

 

[drdanj]

What and Where is a fluxgate compass?

I've only used my boat for fairly local coastal sailing, but now want to travel farther. So I've tried to begin using the Autohelm 4000 that came with the boat, it does not track at all. Reading discussion leads me to wonder about the fluxgate compass. What does this unit look like? Big, small, inside the control box, outside? Any help is appreciated.

Dan
S/V Tao
Catalina 36

 

[Andrew G]

Drdanj. If you look at the picture on the front page of the manual that Saxonpirate posted the Fluxgate compass is the round-ended cylinder with 4 mounting holes to the top left of the diagram. Its about 50mm dia and about 80mm long.See the atached pic View attachment 38304

It needs to be mounted carefully, as per the instructions, to minimise rock 'n' roll and magnetic/electrical interference. Cheers, Andrew