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Implement Alley Discussion Forum

Trailer Wiring Help

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01-15-2004 16:47:13

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Ok, this id a dumb question..... but....
I am wiring a implement trailer that will be pulled by an antique truck with 6 volts.

As I am testing to make sure it all functions, I cannot tell which filament of my dual filament bulb is for my tail light.
Should the large filament be for tail, small filament for brake/turn?

I can't tell because there is no difference in light output between the two. (I can chase the ground problem in the trailer later)
I am wiring at night and still can't tell, sure is frustrating when you stop to scratch your head on something this simple! But I'd rather ask and do it right than to guess wrong!

Thanks for baling me out!

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Leroy

01-16-2004 18:43:32

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Re: Trailer Wiring Help in reply to JC, 01-15-2004 16:47:13

The big question for me would be electric brakes, would a 12V brake work with the 6 Volt system? Or would as I have a trailer that had electric brakes, 1951 vintage, 6 Volt, would the brakes work with todays 12 V system?

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Greywolf

01-17-2004 15:52:12

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Re: Re: Trailer Wiring Help in reply to Leroy, 01-16-2004 18:43:32

You'd have a 12V braking system that MIGHT move the shoes a little. If they would make contact, probably wouldn't be of much use.

All pratical purposes I would say...NO BRAKES!!

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RWK in WI

01-16-2004 06:06:24

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Re: Trailer Wiring Help in reply to JC, 01-15-2004 16:47:13

A battery junper cable connected to the vehicle the battery is in and to the area of the trailer you are working on provides a quick / secure ground . If the trailer is long you can hook two jumper cables together for a long ground connection.

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Gene Davis (GA.)

01-15-2004 19:26:13

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Re: Trailer Wiring Help in reply to JC, 01-15-2004 16:47:13

Some times when you have an insufficent ground on a light it will backfeed through the other filament and they will be both lit at about the same intensity. You probably need to establish a good ground contact for the system then look to see if the brightness differ. Another symptom of bad ground can be that when the stop/turn signal light comes on the other lights may go out. Gene Davis

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John Humphrey Morocco IN.

01-15-2004 17:36:20

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Re: Trailer Wiring Help in reply to JC, 01-15-2004 16:47:13

Little filament= tail light-----BIG FILAMENT= STOP & TURN

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paul

01-15-2004 20:20:57

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Re: Re: Trailer Wiring Help in reply to John Humphrey Morocco IN., 01-15-2004 17:36:20

That would sound right to me.

Take your battery out, set it next to the light, and run aligator clips to it - then you bypass the ground problem for now.

--->Paul

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