Re: [Amel Yacht Owners] bow thruster maintenance


karkauai
 

Hi, Curt. Welcome to the group.
Follow Bill's advice and the instructions you've downloaded, and you'll be fine.
If you search through the site, you'll find several threads about the prop seals. Some have used a stainless steel sleeve of paper thin design to keep the "wearing out" bushing from wearing so quickly. Others have had a machine shop duplicate the brass bearing in stainless. It's a very expensive part if you buy replacements from Amel every two years and cheaper if you have a machine shop make you one, either in brass or in stainless. You can buy the lip seals for both the bow thruster and the main prop shaft at Carolina Seal, Inc in Charlotte, NC www.carolinaseal.com Contact Chuck Wilson cwilson "at" carolinaseal.com You'll find them a lot cheaper than buying from Amel.
Kent
SM243
Kristy

--------------------------------------------

On Fri, 9/12/14, 'Bill & Judy Rouse' yahoogroups@svbebe.com [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: Re: [Amel Yacht Owners] bow thruster maintenance
To: "amelyachtowners@yahoogroups.com" <amelyachtowners@yahoogroups.com>
Date: Friday, September 12, 2014, 2:10 AM


 









Curt,
If I were you, and since this is
apparently your first time, I would order the things you
need from Amel (sav"at"amel.fr). 
The following is the list I gave
Amel for Super Maramu 387 parts will vary from year
to year...be sure and include your Model and Hull number
with your order.Amel Parts
Order:Propeller Shaft Wear Bushing and Seals
(3) Replacement Kit1Seal
for Amel C Drive oil drain1Set of 3
foam donuts for Bow
Thruster1Set of Nylon Screws (for propeller)
for Bow Thruster2Nylon Hub and stainless steel pin
(for propeller) for Bow
Thruster2Shaft Seal for Bow
Thruster160mm Tube Seal for Bow
Thruster1
You might want to order 2
each where I indicated if you have an extra bow thruster
prop. When we were all new with Amels we either came very
close to a line fouling the bow thruster prop, or we did
foul it and the nylon parts break away saving the internal
parts. Unfortunately the prop goes to the bottom...you
either dive for it, or you leave it on the bottom. Servicing
the bow thruster "in-the-water" requires a special
tool that is in the photo section of the Amel Owners Group
website.There are some useful photos here: https://groups.yahoo.com/neo/groups/amelyachtowners/photos/albums/1587075684
Sometimes the hub of the
bow thruster propeller is a little difficult to remove from
the shaft. Before you try to remove it, look at the way your
new part is made. If it is difficult, patience and care are
your best resources.

If it
has been a while since it the bow thruster was serviced, you
may find it difficult to separate the shaft tube from the
electric motor. The best way is to fabricate the metal tool
shown in the photo link above. The second best way is to
disconnect the "up-line" from the top of the
motor, and from the outside of the boat you raise the motor
and quickly pull down on the thruster tube. I did this once
after using a lot of penetrating oil at the junction of the
tube and motor. It took about a dozen rather violent
downward pulls to do this. I later discovered the tool
pictured in the group of photos above.
The reason the tube will
get stuck is that there has been saltwater seepage while the
bow thruster is down. The reasons for the seepage are
generally:You forget the bow
thruster is down and sail some distance with it down
The bow thruster need service and the
seals are worn
You have deployed
the bow thruster down in rough seas.

Use plenty of waterproof
grease at the junction of the tube and the motor when you
reassemble it.
The service is not
difficult and the amount of time to complete the service
decreases with each service you perform.
I hope this helps you...and
assuming that you are new, welcome to the Group and
Amel.
BillBeBe 387

On Fri, Sep 12, 2014 at
3:16 AM, sail2live@hotmail.com
[amelyachtowners] <amelyachtowners@yahoogroups.com>
wrote:















 









I have downloaded and read the various PDF files
re. thruster maint. and seal replacement.

Thanks very much to those that
have posted those files.

Our Maramu is in Fajardo, PR and I intend to do
the maint. in Nov. before we launch.

Q:  Where do I buy the parts for the
maintenance and for spares aboard?

Thank you for your help.

Fair Winds

Curt Epperson
S/V Languedoc

































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