Re: A54 bow thruster seal replacement?
Scott SV Tengah
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When I was troubleshooting my 1 year old replacement BT motor, those were the words out of the mouth of the lead tech at Sleipner USA (IMTRA). They had some trouble with lifepo4 equipped boats because they designed it to operate at much lower voltage than the lifepo4 batteries provided under load. Perhaps they were trying to get out of warranty work, but that's what they stated. Turns out my trouble was something else, btw.
Regarding the shutoff switch, apparently newer A54s came with an emergency shutoff switch in the bow locker. Olivier suggested in his survey that I install one. I did a bit of asking around and my understanding is there was an A54 that had the solenoids melt closed (probably due to high amperage as a result of low voltage) and thereafter it was recommended that you have the emergency shutoff switch and run the genset and chargers when you're using the BT. It was third hand, but I also definitely have read, more than once, the recommendation to run the genset/chargers in docking operations.
I had the Sleipner shutoff switch but it's not that waterproof and quickly failed in that sometimes wet bow locker. I now have three 450A fuses, one for each pair of batteries, installed. I also have a third battery switch at the passage berth dedicated to turning off the BT power in an emergency.
On Mon, Dec 14, 2020 at 5:22 PM Dean Gillies <stella@...> wrote:
2007 A54 #69