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Steering 'clonk' |
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High Time
Vice Admiral Joined: 04 September 2012 Location: Portsmouth UK Status: Offline Points: 798 |
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Posted: 07 May 2014 at 10:34 |
High Time has developed an occasional 'clonk' in the steering under autopilot.
I unscrewed the floor yesterday to take a look and found that the drive motor (Jefa) has some float (up/down freedom of movement) on the shaft. When you lift it up it makes the exact clonk I'm hearing so I think this may be the culprit; everything else looks/sounds OK. My questions -
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Roger
High Time (415 #038) |
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High Time
Vice Admiral Joined: 04 September 2012 Location: Portsmouth UK Status: Offline Points: 798 |
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. . . . . . . so, no-one has had any problems with their autopilot drive?
That's good. I wonder why mine has started 'clonking' then?
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Roger
High Time (415 #038) |
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CharlesP
Admiral Joined: 23 September 2010 Location: United Kingdom Status: Offline Points: 1208 |
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Well I get "clonks" but they've always been there and I assumed it was normal. Haven't had a chance to check the Jefa shaft yet. Have you checked with Jefa? I understand they respond quite quickly to emails.
Charles |
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'MERIDIAN LADY'
320 Nr 536 2010 Medway |
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High Time
Vice Admiral Joined: 04 September 2012 Location: Portsmouth UK Status: Offline Points: 798 |
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Thanks Charles.
No I haven't tried Jefa yet but will do so now. I'm hoping to get IMG to have a look sometime soon. We are scheduled to leave on our summer cruise (south Brittany) in a couple of weeks so am anxious to get this sorted before we leave. IMG suggested it's the cables but I had already checked these. I'm pretty sure it's the DD1 shaft that's moving slightly.
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Roger
High Time (415 #038) |
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CharlesP
Admiral Joined: 23 September 2010 Location: United Kingdom Status: Offline Points: 1208 |
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I didn't know there were any cables. Perhaps your setup is different. If it was cables or alternative linkage, I assume they would be within the pedestal linking the wheel to the deck level linkages, whereas the Jefa drive is remote from the pedestal. Can you reproduce the clonk by simply moving the wheel from side to side quickly just a short way?
Charles |
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'MERIDIAN LADY'
320 Nr 536 2010 Medway |
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High Time
Vice Admiral Joined: 04 September 2012 Location: Portsmouth UK Status: Offline Points: 798 |
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No. The only way I could reproduce the noise was by lifting the DD1 shaft up and down. It has a couple of millimetres float. This may be 'normal' but seems slightly excessive to me.
The 415 steering has cables from the wheels, down the pedestals and round the quadrant. The DD1 drag link operates directly on the quadrant. I have now written to Jefa and will post their response. IMG will be taking a look at the system next week.
Edited by High Time - 09 May 2014 at 12:51 |
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Roger
High Time (415 #038) |
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panos
Admiral Joined: 02 March 2008 Status: Offline Points: 1929 |
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If it's a new "clonk" then it can only mean that something inside is wearing and... Murphy's law is waiting to prove itself. Don't spoil your vacations, get it fixed.
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Panos
Hanse 630e - selling her - |
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Ilkhanse
Captain Joined: 27 November 2011 Location: USA Status: Offline Points: 228 |
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Roger,
We have no clonk yet, but are using an Octopus drive instead of Jefa. Good luck and please keep us posted. Thx. |
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Lippe
Commadore Joined: 05 September 2009 Location: Finland Status: Offline Points: 356 |
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When my Hanse was new and first summer in water I heard also sounds in the tiller compartment. The sound was coming from not enough tighten bolt that keeps the intermediate piece cripped to rudder shaft delivering movement from rudder shaft to stearing equipment (is t called quadrant?).
Best Regards Kari |
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Rod
Commander Joined: 11 March 2013 Location: Dubai/Gocek Status: Offline Points: 122 |
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After about six months I was experiencing severe "clonks" which sounded expensive. We removed the panel above the Jefa motor and determined the motor to be the problem. IMG organized a replacement which I refitted and this cured the problem. However getting 1.85M into the 415 rear compartment and finding the wiring in 40C was interesting. In the end we cut the cables and fitted a watertight joint near the motor. No problems since!
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