On Wed, 6/27/18, 'Mohammad Shirloo' mshirloo@transpacific.us [amelyachtowners] <amelyachtowners@yahoogroups.com> wrote:

Subject: RE: [Amel Yacht Owners] Bow-Truster overheat
To: amelyachtowners@yahoogroups.com
Date: Wednesday, June 27, 2018, 12:41 PM


 












Hello
Reudi;
 
Yes,
the Amel 54 has a thermal cutoff to prevent damage to the
thruster as well as
continuous high current draw (Around 550 Amps at 24V) which
could lead to fire
on board. We've had the thermal cutoff kick in  only a
couple of times
and it has reset in a matter of minutes. We have not timed
the exact reset
duration.
 
I'm
not aware of any adjustments in the thermal cutoff. The bow
thruster has a
direct connection to the batteries without a breaker. The
thermal cutoff is the
only safety items preventing major damage to the thruster
and/or
wiring.
 
Try to
use the thruster in bursts (less than 15 seconds), as much
as possible, so it
has time to cool down between usage. We try to over correct
a bit when we use
use the BT so as the bow falls off, the BT has more time to
cool.
 
Respectfully;
Mohammad
Shirloo
323-633-2222
Cell
310-644-0908
Fax
 



From:
amelyachtowners@yahoogroups.com
[mailto:amelyachtowners@yahoogroups.com]
Sent: Wednesday, June 27,
2018 9:58 AM
To:
amelyachtowners@yahoogroups.com
Subject:
[Amel Yacht Owners] Bow-Truster overheat


 


Dear Forum
On my Amel-54 I discovered that the bow truster stops
working after
repeatingly use within 10-15 min timeframe.
I used the bow truster a bit more than usual when I
practiced some manouvers
first time; - and on a second occation when I had to
manouver in a marina with a
lot of windguests of 18+ kn and another chain over my
Anker.
It stopped working and after a while (maybe 10 min.) it
re-started &
operated normaly. I know BT Is not made for constant use, -
only few seconds at
a time. Then wait and re-use another time.
Question from a beginner:
Does the bow truster has a termic fuse which is activated
after some time of
usage to save the motor from overheating? 
Does anyone know exactly how it works and if this can be
adjusted because I
think the BT on Wasabi switches of quite fast. Any ideas or
other
information?
Best regards
Ruedi
SY Wasabi A54#55
Sailing Cyclades GR.