On Tue, 10 Nov 2020 at 4:04 am, Mike Ondra via groups.io

<mdondra@...> wrote:

I have experienced exactly the same shaft sharing on both the outhaul Leroy summer motor as well as the furling motor. Clean brakes both. My sense is that with a very very slight misalignment of the gearbox to the motor shaft that overtime stresses eventually weaken the shaft and then an incident of shock load from operating The motor shears the shaft.
Mike Ondra

Aletes SM #240

On Nov 8, 2020, at 3:15 AM, michael winand via groups.io <mfw642000@...> wrote:

Hi.I have encountered this problem with my main furler motor. 

I have sheared the shaft on the leroy somer motor where it enters the gearbox. 

Any suggestions on how I would be causing this problem?

The gearbox is still working well. As I have it apart I will give it a full service. 

I would like to ask if anyone has been through this issue and what action is needed to fix this. 

I'm not sure if this is a design that allows the shaft to be replaced as a sacrificial item to prevent overloading?I have taken a photo of the issue. 

Apon removal it was still the original installation. The electrical brushes still have most of their length intact. 

Many thanks to the group 

Michael  Nebo  sm251 

<20201108_171619.jpg>

<20201108_171619.jpg>

Hello

is there a list of all disruptors installed on Amel 54 (by ref and spec)?

I understand there are different references (either unipolar / bipolar).

Need to source a replacement for 7122104 10D (72vdc,400vac), not provided by  sav Amel. Wondering how many of those are fitted onboard.

Thanks

S

GARULFO A54-122

Moorea, French Polynesia

On Nov 8, 2020, at 3:15 AM, michael winand via groups.io <mfw642000@...> wrote:

Hi.I have encountered this problem with my main furler motor. 

I have sheared the shaft on the leroy somer motor where it enters the gearbox. 

Any suggestions on how I would be causing this problem?

The gearbox is still working well. As I have it apart I will give it a full service. 

I would like to ask if anyone has been through this issue and what action is needed to fix this. 

I'm not sure if this is a design that allows the shaft to be replaced as a sacrificial item to prevent overloading?I have taken a photo of the issue. 

Apon removal it was still the original installation. The electrical brushes still have most of their length intact. 

Many thanks to the group 

Michael  Nebo  sm251 

<20201108_171619.jpg>

<20201108_171619.jpg>

On Nov 9, 2020, at 7:46 AM, Philippe Belloir <pbelloir@...> wrote:

 

Sorry it’s in french, the file give all the recommendations for cleaning and disinfecting containers and pipes

Fair winds,

Philippe

 

De : main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] De la part de David Kurtz via groups.io
Envoyé : vendredi 6 novembre 2020 16:07
À : main@AmelYachtOwners.groups.io
Objet : [AmelYachtOwners] Cleaning fresh water tank on my SM2K

 

Good morning all!  I tried cleaning my fresh water tank using Bill’s alternate method (fill with bleach solution, let sit for 48 hours, drain, flush, etc.) and did not get the desired results.  The attached photo shows what I am dealing with.  Seems to be a couple varieties of mold that was not killed off by the bleach solution.  Now that I am opening up all three access ports I want to clean it with something that works, but doesn’t poison my whole family 😳.  What have some of you used for cleaning?<image001.jpg>
-- 
Dave Kurtz
SM2 #380
S/V Celtic Cross

Detroit, Michigan

<Reservoirs_et_canalisations_d_eau.pdf>

On Nov 9, 2020, at 7:46 AM, Philippe Belloir <pbelloir@...> wrote:

Sorry it’s in french, the file give all the recommendations for cleaning and disinfecting containers and pipes

Fair winds,

Philippe

 

De : main@AmelYachtOwners.groups.io [mailto:main@AmelYachtOwners.groups.io] De la part de David Kurtz via groups.io
Envoyé : vendredi 6 novembre 2020 16:07
À : main@AmelYachtOwners.groups.io
Objet : [AmelYachtOwners] Cleaning fresh water tank on my SM2K

 

Good morning all!  I tried cleaning my fresh water tank using Bill’s alternate method (fill with bleach solution, let sit for 48 hours, drain, flush, etc.) and did not get the desired results.  The attached photo shows what I am dealing with.  Seems to be a couple varieties of mold that was not killed off by the bleach solution.  Now that I am opening up all three access ports I want to clean it with something that works, but doesn’t poison my whole family 😳.  What have some of you used for cleaning?<image001.jpg>
-- 
Dave Kurtz
SM2 #380
S/V Celtic Cross

Detroit, Michigan

<Reservoirs_et_canalisations_d_eau.pdf>

On Mon, 9 Nov 2020 at 2:29 am, Karen Smith via groups.io

<karenharmonie@...> wrote:

On the subject of Leroy Somer furling motors, we learned a bit about them this year--way more than we wanted to.

For the first time since we owned Harmonie, the outhaul motor exhibited classic signs of needing new brushes:  irregular operation.  When I removed the brush holders, oddly, the brushes looked fine. Upon further disassembly the rest of the story was obvious.  25 years of accumulated carbon dust had obstructed the rotation of the armature to the point that the friction shattered the internal magnets. This motor was dead.

Amel shipped us a new motor which fit and works just fine. Key point here:  Whenever changing brushes do not just pull them out of the holder and drop new ones in, but clean out all the dust. Do not let it accumulate inside the motor!  Do not assume that previous owners or mechanics did this correctly.

Lesson learned, we completely disassembled the furling motor (which is identical), and cleaned the inside with vacuum and contact cleaner, dressed and polished the commutator, and tested resistances.  All checked out well, so they should be good for the next 25 years...

Notes on the new motor:  the new Leroy-Somer motor carried the same part number, and was in all key external dimensions identical to the 25 year old original. It mounted and worked just fine. The internals are quite different, however. Key for maintenance is the fact that the brushes are different.  Instead of two externally accessible brushes, the new design requires disassembly of the motor and replacement of the entire internal brush holder assembly because the four (not two!) brushes are welded in place to the holder.  This emphasizes the importance of sending pictures of parts to Amel when ordering.  If you simply order brushes for Leroy-Somer motor Part Number XXX_XXX you might not get what you need.

Other important lessons that would have saved us this cost:

* Electric motors are (almost) forever if regularly cared for.  The furling motors hadn't gotten to the top of our list for a professional rebuild.
* Take stuff apart.  You learn a lot, and this problem could have been avoided if this motor had been on my "take it apart and put it back together for no reason" list. 

Bill Kinney
SM#160
Harmonie
Annapolis, MD