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Jefa - Garmin Pilot Instal on Sun Odyssey 35

Jeanneau Forum Member "VSergio" provides the detail


I have eliminated the last piece of Raymarine electronics on my boat, replacing the Raymarine autopilot wheel drive with the Garmin (Jefa) linear drive and ECU. So now Garmin 100% and all communicating via Garmin NEMA 2000.

The Unit:


Choosing a mounting location:


After measuring the space available in the rudder/quadrant section and after reading the installation manual, I decided that ideally the Garmin drive unit should be mounted as much as possible in parallel with the bottom of the swim platform. In order to comply with the minimum and maximum free movement of the unit as per manufacturers instructions, the inside of the swim platform inside had to be extended to starboard and bow by 15 cm. The plywood extension concoction I prepared was first glued with fast cure epoxy followed by glassing in to make it rock solid. Gelcoat was painted over just for cosmetic reasons.



Installing the tiller and tiller pin:


The drive can be installed directly to the quadrant or to a tiller that is mounted to the rudder shaft. I installed a Jefa tiller (made for 50mm shafts) and the tiller pin.

Mounting the drive unit:

First, I attached the drive unit to the tiller followed by drilling and securing the drive unit to the glassed extension with SS bolts and nylocks.



Calibration of the Drive Unit:

Before connecting the drive unit to the electronics, it is essential to test the movement of the drive unit and make sure it is not restricting the full movement of the quadrant from bumper to bumper. Adjust the tiller angle to ensure the quadrant is not restricted.


The original thread can be viewed on the Jeanneau forum here