Below deck auto pilot for Hanse 315

Nice installation.

Are the Jefa DD1 only used for backup? Or do I miss what the garmin is for?

Hi Jawi, very nice installation well done.

I liked the design of the Jefra drive unit but could not justify the price for my yacht. The Hanse agent in Port Hamble is renowned for high pricing, and they are the wrong side of the Solent for me to keep control of project.

 I obtained a substantial discount on my Raymarine equipment which clinched the deal.

I guess you will get as much enjoyment and benefit from proper Autopilot as we do.

Perry

Ok I have a Jefa DD1 on my boat and got confused and also a bit confused from the above because Garmin Reactor 40 is often sold with a hydrolic actuator and you mention power again

But I understand that you have a Garmin autopilot Computer and controlpanel that control the DD1.

Btw. I think that this is a good choice because alone a B&G Precision-9 9-axis compass cost 2/3 of your Garmin setup that also include a 9-axis compass.

I was considering upgrading our compass, but now I know Garmin has this Kit to retrofit, I will go for this instead, when it is time to replace my Autopilot computer.

Yes the TP22 is good.

If it should fail you?, my experience of this type may help:-

When removing/replacing case be very carefull with the screws once the threads pull out of the thin plastic you in trouble, new case from manufacturer is huge price. Si if you damage the case the manufacturers price for new case makes repair too expensive against new unit.

If threads fail it leaves only option to drill through and fit long screws and nuts.

If you have to fit screws and nuts to refix case you need to seal each screw/nut.

The silicone rubber seal is not robust and re-fitting it take your time and careful.

Having taken it apart a common failure mode is the small magnets moulded into the large drive wheel [these magnets pass two Hall efffect sensors to give the 'rate signal' for the microprosessor'. The erratic fault caused when the magnets move in the drive wheel due aging of the bonding. Re-fix magnets [Sikaflex or suitable adhesive and position magnets to pass near Hall sensors, but not touch. The rate sensor fault tends to start with erratic behavoir when hot and gets worse until full loss control.

Obviously other faults  may be easier to spot, like drive train etc, water ingress etc, I hope you never have to learn! but I hope this may help? Great Tiller Pilot when working properly.

Regards

Perry

congrats for this nice perfect solution.

I just want to do the same autopilot system from Jefa at my Hanse 320 this spring time.

Do you have more pictures and information of the working process?

Maybe you have also a list of the parts what you really need?

It would be very helpful for me.

Thanks a lot and nice regards from Austria!

Markus