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Jefa Direct Drive Unit |
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shaukaas
Commadore Joined: 04 August 2008 Status: Offline Points: 395 |
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In the last minute I decided to open the unit at home, and order the required spares from Jefa. This reduced my bills down to approximately €350: New clutch set and pancake motor.
Easy job to replace these, and instructions were included/available from the Internet anyways. The unit is definitely not designed to be located in the cockpit-drain. There are too many possible entries for water and humidity. I sealed all the sandwich-layers with grease (acidfree vaseline) + used a sealant on between the two lower parts. The whole unit has then been covered with plastidip (1 layer done, planning to do 3) + I will add some grease on the simmering around the output-shaft. I've got a 440nm trip across the North Sea coming up next week; so let's see how the unit will perform. And also I'm curious to see for how long this thing will last until the next repair is due... Edited by shaukaas - 19 May 2016 at 05:42 |
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S/Y Nadun - Hanse 320#171
LG3600 - NOR13510 |
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Brufan
Rear Admiral Joined: 16 December 2010 Location: Belgium Status: Offline Points: 629 |
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Sorry to say that I have the same issue again.
Does anyone knows how to solve this problem ? Does anyone managed to seal the drive or the bay where it lays ? Thanks |
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Bruno
hanse 355 - 57 S/Y Spicy Ginger White hull, 2 cabins, Volvo D1-30, Selden rig, removable mainsheet track system, Simrad (now B&G)-Jefa autopilot. |
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charentebob
Commadore Joined: 09 April 2014 Status: Offline Points: 403 |
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I had one of these units fail on my 370 in 2014. I sent it to Jefa for repair & although not guaranteed for life, they said if sealed properly it should be OK for a very long time. They made a modification to the way the wires entered the unit as this was the source of the water ingress. It was not sealed as shaukass has done, although this may be a good thing to do.
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Heikki
Commander Joined: 15 November 2014 Location: France Status: Offline Points: 82 |
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Sorry, but rate compass in 400e still not found. Could you please give some more hints.
Heikki |
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Rubato
Admiral Joined: 12 July 2006 Location: Canada Status: Offline Points: 1791 |
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Heikki
Not sure where you've looked but on my 2007 it can be found in the port side cabinet in the forward berth (V-berth). I believe I've also heard of them being in the cabinet of the port side aft quarter berth. Steve
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Steve
Hanse 400e, #168 |
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alidal
Captain Joined: 30 September 2010 Location: Norway Status: Offline Points: 293 |
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In my 2010 H400 it is under the cabinet in port side aft cabin..
Edited by alidal - 18 November 2016 at 19:26 |
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Hanse 400#655
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Heikki
Commander Joined: 15 November 2014 Location: France Status: Offline Points: 82 |
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Rate compass finally found. It was in the forward cabin port side hanging locker as Steve said half a year ago. I just didn't find it as it is on the upper part of the locker. The instructions say it should be installed close to the water line, so I was looking down!
Anyway, it is type RFC35 and my problem is the almost constant turning of wheel about 5 - 10 cm back and forth when the autopilot is on. This is certainly not good for autopilot drive motor and it also consumes amps. I have tried the manual parameter adjust without succes. I haven't performed the dockside settings and the sea trial. I suppose, I should do this first as there was nothing wrong with the compass installation (not too close to magnetic objects). Heikki |
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Sea-U
Commadore Joined: 14 September 2012 Location: Norway Status: Offline Points: 459 |
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Seems like you have the problem I had. Probably only the gain is too high.
When I did the dockside and sea trial the autopilot was mad. I just lowered the gain setting and it has been fine since.
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Sea-U is a 370e #532 located SW Norway
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Heikki
Commander Joined: 15 November 2014 Location: France Status: Offline Points: 82 |
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Hi Sea-U,
Could you please explain how you lowered the gain setting. In my manual "gain" is only mentioned under Depth Contour and Depth gain. "Use the gain control to have a firm or smooth response to the variation in depth". Heikki |
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Sea-U
Commadore Joined: 14 September 2012 Location: Norway Status: Offline Points: 459 |
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I cannot remember what it says on the autopilot.
There are two settings: gain and response. I think the "response" word is used, may be another word for gain. The gain setting will influence how much rudder is given to correct a cource. If too much, you get this behaviour. The boat turns too much and it has to turn the rudder the other way ... and again it does this too much ... and so on.
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Sea-U is a 370e #532 located SW Norway
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