40 ft hunter electrical

[Rick.johnson]

Hi Guys i just purchased a 87 40 ft hunter legend

An am in need of the original electrical diagram that came with it
If any one could help me out appreciate it

Thanks Rick

 

[rgranger]

Go to Hunterowners.com and click on the "Resources" link... then select your boat...

there is a lot of stuff you may find useful there but to get to this question, go to "downloads" and you will get the manual there. It has the diagram you are looking for...

 

[Davidasailor26]

Hope you’re able to find a diagram. Just be advised not to take anything for granted assuming your boat matches any diagrams. Previous owners have had 35 years to make all kinds of changes with good intentions and probably varying levels of implementation quality. Boats are also not like cars and it’s not unusual for them to come out of the factory with differences from the diagrams in the manual.

 

[Rick.johnson]

Ok GREAT Thanks Guys it a good place to start

Thanks Again Rick

 

[Rick.johnson]

will ok that is a start on the electrical diagram
looking for a more detailed on an also one on the way the batteries are to be properly connected
in to the selector switch is select 1 the engine start battery an 2 the house batteries

an both ?? encompass both using all the battery ?????

Please advise Rick

 

[Tally Ho]

will ok that is a start on the electrical diagram
looking for a more detailed on an also one on the way the batteries are to be properly connected
in to the selector switch is select 1 the engine start battery an 2 the house batteries

an both ?? encompass both using all the battery ?????

Please advise Rick

It all depends on what PO’s have done to the boat.

on my O’Day 322, I had 2 batteries when I bought it, 1 on battery switch 1, the other on battery switch 2. Both could be used for house and starting the engine.

I changed those 12-volt group 27’s for 2 6-volt golf cart batteries, wired together in series to provide 12 volts. They are connected to switch 1. So far, nothing is attached to switch 2. I am planning on adding a start battery to my system next spring. But I probably won’t use switch 2 for that…just connected to the starter with an on/off switch of its own.

You are probably going to have spend some time reviewing what exactly is on your boat, and figuring out how it is wired. Over the years, things get changed by different owners.

I was checking some wiring on my boat this summer, and found 12-volt cigarette lighter outlets runnning through circuit breakers for the fridge, the fwd lights and the aft lights.

I guess a PO wanted one that would almost always be on (the fridge circuit).

The point is, you are going to have spend the time to turn circuits on and off, see what turns on and off, and trace stuff.

Your boat wiring is probably unique to your boat and whatever PO’s have done over the years.


Greg

 

[Rick.johnson]

Ok How can i determine if battery connection that is on # 1 is the started battery
right now i leave it at both an it start the engine an also power the dc lights
but i think that not right to do ????

 

[Davidasailor26]

Ok How can i determine if battery connection that is on # 1 is the started battery
right now i leave it at both an it start the engine an also power the dc lights
but i think that not right to do ????

It just depends on what batteries are connected to each side of the switch. Usually you’ll have either identical batteries on each side, or you’ll have one large bank of multiple batteries one one side and a single start battery on the other.

If you have identical batteries on each side then it’s pretty much arbitrary which one you use as start and which one is house, and you could rotate them to balance their wear. You’ll generally want to stay on the “house” side whenever you’re just running the normal house loads, and “start” if you drain the house side too far and can’t start the engine with it. You’d keep it on Both when you’re running the engine to charge both banks. This is not a great setup though as it’s not an efficient use of all the lead you’re carrying around.

If one bank is larger you’ll want to use that as “House” and the other when starting. Still combine them to “both” when running the engine to charge.

It really will take more investigation though to figure out how your system is wired and what will work best for it. It’s also possible some previous owner has added an automatic battery combiner rendering the switch redundant or making it work in unpredictable ways. No way of telling without tracing the wires.

Lots more very useful info on the 1-2-B switch - 1/2/BOTH Switch Considerations

 

[Tally Ho]

Remove the black wire from 1 battery bank, turn the battery selector to 1 and see what works (house or start). Repeat with the other battery bank.

As @Davidasailor26 said, you might have a larger bank (typically house) and a smaller bank (typically the starter), but they could be the same size.

On my boat, I used to have 2) Group 27 batteries. Neither was dedicated to house or start. I just switched them back and forth on different days.

Today, I have switched to 2) 6-volt GC batteries. No starter battery in the system yet, but plan to add one.

Greg

 

[Stu Jackson]

Remove the black wire from 1 battery bank, turn the battery selector to 1 and see what works (house or start). Repeat with the other battery bank.

Uhm, that might not work. Because even with two banks, the negatives are combined back to the engine ground. And often they go: Bank 1 to Bank 2 to ground, not necessarily separate.
The way to do it is, carefully, with the positives to the 1-2-B switch.

 

[DayDreamer41]

Good luck on your searches, we have a 41 07 model year and have yet to find any meaningful EL drawing, I was able to find wire color chart but thats about it.

 

[Tally Ho]

Uhm, that might not work. Because even with two banks, the negatives are combined back to the engine ground. And often they go: Bank 1 to Bank 2 to ground, not necessarily separate.
The way to do it is, carefully, with the positives to the 1-2-B switch.

Good point. Now that I think about, mine was that way.

You could determine which ground is the jumper, and use the other one.

Greg

 

[SycloneDriver]

Like several others have suggested, you are going to have to investigate. Disconnect the ground connections at the batteries and test the starter and house loads. Take some notes and get back to us. Many/most boat are not wired ideally. I'm not a fan of 1/2/both switches or the stupid ground switch that Beneteau installs.
* Some Hunters use a relay to parallel the batteries under certain conditions.

 

[Stu Jackson]

or the stupid ground switch that Beneteau installs.

Which reminds me of this that the OP may not be aware of:
Beneteau Wiring Diagrams - Maine Sail's corrections - Just in case you have a friend with a Beneteau and want to help him with his unusual switching Reply #8

One black and two red electrical switches