9N draining battery

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Tom N MS

Well-known Member

• Sep 15, 2012

• #1

6 volt system-sparks when you connect/disconnect battery cables(key off)..Disconnect generator and no spark..How common is it for generators to be the drain problem? Thanks

 

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old

Well-known Member

• Sep 15, 2012

• #1

Not sure if it has a V.R. or cut out but either one will cause that problem since a generator is working as it should will motor and that in it self will cause a draw on the battery so you have a sticking relay in the cut out of V.R.

 

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Bob Harvey

Well-known Member

• Sep 15, 2012

• #1

Correctamundo. Apparently there is a 'solid state' replacement for the 9N cutout - check the 'Archives' HTH

 

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Plane Bart

Member

• Sep 15, 2012

• #1

I had the same problem with my six volt 9N single wire generator
the made in the land of the almost right cut out relay would arch when motor was running basically welding the contacts together and the springs were not strong enough to pull them apart.
This would put a back feed to the generator and drain the battery.
I purchased a full wave bridge rectifier 25 amp 50 volts as suggested by others on this site I plan to put it intomorrow

 

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Tom N MS

Well-known Member

• Sep 15, 2012

• #1

I put a bridge rectifier on his(My Dad"s) 2N several yrs ago-you won"t be sorry u did that.

 

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Tom N MS

Well-known Member

• Sep 15, 2012

• #1

Has a bridge rectifier on it-I installed several yrs ago..any other suggestions? Tks

 

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teddy52food

Well-known Member

• Sep 15, 2012

• #1

Sounds like that recifier is bad.

 

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Mr. T. Minnesota

Member

• Sep 15, 2012

• #1

Tom,
I have used what I guess to be a "bridge rectifier" on my R2 Cat. I am also using a "BR" on my Wincharger generator system because I could not find a good cut out. They were about $30.00. Both systems are 6 volts.
A few days ago a forum member was having a similar problem. Some forum members were saying that the diodes could either not carry current or fry and close the circuit. Hope this helps!
Mr. T. Minnesota

 

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Tom N MS

Well-known Member

• Sep 15, 2012

• #1

Thanks

 

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Tom N MS

Well-known Member

• Sep 15, 2012

• #1

Thanks-hope not but would be my luck..

 

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souNdguy

Well-known Member

• Sep 15, 2012

• #1

bat cables spark.. but armature on genny doesnt?

i'd look for another load...

 

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Mr. T. Minnesota

Member

• Sep 16, 2012

• #1

Tom,
Are there any other circuits that could cause a slow draw? On the generator track again, does the generator charge? Did you try both sides of the bridge rectifier, maybe grounded inside. I would check the amount of current being drawn, amp meter between the battery post and battery cable. Hope this helps!!
Mr. T. Minnesota

 

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Tom N MS

Well-known Member

• Sep 16, 2012

• #1

Have not touched the rectifier since I installed it several yrs ago..Plan to go to my Dad"s today-will ck amount of draw..Thanks Note: Reason I installed the Bridge several yrs ago is that he was having draining problems-found bad cutout--bought two and they were both bad.--installed the BR and it took care of it till now..

 

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Tom N MS

Well-known Member

• Sep 16, 2012

• #1

Not sure I understand----What I was trying to say was--battery cables don't spark while you disconnect or connect them while the one wire to the genny is disconnected.

 

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Plane Bart

Member

• Sep 16, 2012

• #1

Tom I had this problem also with mine I found the stud for the single wire generator was grounding out.
Take part the generator and read continuity from the stud to the casing
I had to file off some of the solder on the back side also cleaned up the casing on the internal parts while I had it apart.
Check the field windings also they should read continuity through the windings also.

 

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Plane Bart

Member

• Sep 16, 2012

• #1

Tom I had this problem also with mine I found the stud for the single wire generator was grounding out.
Take part the generator and read continuity from the stud to the casing
I had to file off some of the solder on the back side also cleaned up the casing on the internal parts while I had it apart.
Check the field windings also they should read continuity through the windings also.

 

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36 Coupe

Well-known Member

• Sep 17, 2012

• #1

Its not the generator.

 

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36 Coupe

Well-known Member

• Sep 17, 2012

• #1

Diodes short circuit or develope reverse leakage.They are not foolproof.Better up the voltage rating.The generator has to run at a higher voltage to over come the voltage drop of the diode.35 amp bridges should be heat sinked to aluminum.Screwing it to an old cut base aint enough.Generators put out some spike voltages that destroy diodes.

 

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souNdguy

Well-known Member

• Sep 17, 2012

• #1

well that's not exactly what you said before.

so..

lets get very specific.. this is an esy issue to trace that is being made difficult due to lack of clarity of posts.. way too much time is being wasted here.

1.

with genny arm hooked up.. do bat terminals spark when being disconnected?

if yes, put a test lamp inline to arm.. if it lights up guess what.. it's the load.. whatever cutout or diode setup you have is not working. if a diode.. is it installed backwards?