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captain ron (207.30.240.76)

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Posted on Wednesday, June 02, 2004 - 12:19 am:   

I just hooked up my trailer to my 4905. the pigtail does not have seperate wire for brake lights. and my trailer does not have 3 individual lights for tail, brake and signal as my bus does.
I tried just hooking the wire from the brake lights into the same one as the signals but just got a hazard light effect although very slow. also I found 1 extra wire in the existing trailer wiring but when putting a volt meter to it I got 24 volts. can I reduce this to 12 and do I need to buy an extra set of lights for my brake lights.
please respond asap as I need to be on the road as early as I can be on wed june 2
gabby (4.246.253.142)

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Posted on Wednesday, June 02, 2004 - 1:19 am:   

I only hooked up the brake and stop lites on my coach. I don't drive at nite so dont need running lites.Replace your 12 volt lites with 24 volt ones and it should work ok
Sean Welsh (Sean) (64.81.73.194)

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Posted on Wednesday, June 02, 2004 - 1:21 am:   

Ron,

Here's a simple circuit you can build with four standard automotive-style relays (24-volt, of course) that will give you 12-volt lights from a 24-volt coach, and also consolidate the separate turn/brake lights into a combined turn/brake system:

http://odyssey.smugmug.com/photos/4750590-O.gif

Take the 12 volts from the center of your battery bank if you don't already have a converter.

Give me a shout if you have any questions.

-Sean
Peter Broadribb (Madbrit) (67.136.116.215)

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Posted on Wednesday, June 02, 2004 - 5:13 am:   

Easiest and quickest is to make up a trailer lighting board with 24volt bulbs and seperate flasher lights and wire it to suit the bus. You can use 2 standard tail/brake lamp units each side and use one for turn signals and the other for brake lights and have all four working for tail-lights.

Plug it into a connector at the back of the bus and then bolt, tie or whatever, it to the back of the trailer when you're towing it behind the bus.

Peter.
FAST FRED (4.245.224.179)

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Posted on Wednesday, June 02, 2004 - 6:03 am:   

This works , but with one caviat.

The 24V bulbs have the "bright" (stop or turn) element indexed where 12V bulbs have the "dim " (running) element.

Only a few seconds to switch the wires , but it saves some head scratching.

We have found the "magnetic" lights to be a real time saver , as we only tow a Toad infrequently , but seem to always have a boat or other trailer behind.

Works for ME,

FAST FRED

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