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Author Topic: 24v to 12v trailer conversion.  (Read 1908 times)
TrevorH
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« on: March 05, 2008, 01:18:25 PM »

I need to wire something up for a trip I am going to make next week.  So time is not on my side.  Is it possible that I could wire additional 12V light pulles in series with the boat trailer to make it all 24v?  I often tow the trailer with a 12v truck so I really dont want to modify the trailer.  Is this gonna work?  Is there something better?
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1987 MCI 102A3 8V92TA 5 spd MT
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Nick Badame Refrig/ACC
1989, MCI 102C3, 8V92T, HT740, 06' conversion FMCA# F-27317-S "Wife- 1969 Italian/German Style"
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« Reply #1 on: March 05, 2008, 02:13:10 PM »

Hi Trevor,

Yes, that would work but, there is something better.. I just can't remember who has the diagram.
It uses a converter to drop the voltage down to 12 volts.

Someone refresh my memory Please.....  Maybe Jack Conrad knows

Nick-
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Whatever it takes!-GITIT DONE! 
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gumpy
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« Reply #2 on: March 05, 2008, 02:38:34 PM »

http://www.gumpydog.com/bus/MC9_WIP/Electrical/Tail_Light_Converter/tail_light_converter.htm
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Craig Shepard
Located in Minnesquito

http://bus.gumpydog.com - "Some Assembly Required"
Busted Knuckle
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« Reply #3 on: March 05, 2008, 03:42:20 PM »

Trevor,
Another simple solution, if ya don't have time to build Gumpy's converter board is to take the bulbs you have now to NAPA and have them cross them with identical 24V bulbs and then you just switch bulbs for what ever your pulling it with ! FWIW Grin  BK  Grin

Of course a little bit easier way is to buy a set of portable tow lights and install 24V bulbs in them, and mount them on what ya tow'n. Whether it be boat, toad, trailer, mother n law, opps scratch that last one might get t=ya's in trouble!
« Last Edit: March 05, 2008, 03:45:30 PM by Busted Knuckle » Logged

Busted Knuckle aka Bryce Gaston
KY Lakeside Travel's Busted Knuckle Garage
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Nick Badame Refrig/ACC
1989, MCI 102C3, 8V92T, HT740, 06' conversion FMCA# F-27317-S "Wife- 1969 Italian/German Style"
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« Reply #4 on: March 05, 2008, 03:43:24 PM »

Thanks Craig..

It slipped my mind that it was you! Sorry!

Great design!
Nick-
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gmbusguy1
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« Reply #5 on: March 05, 2008, 03:46:28 PM »

that was easy !

we just built one of Craig's relay contraptions last week and it really does work.

chris
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oldmansax
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« Reply #6 on: March 05, 2008, 04:52:29 PM »

I persuaded Craig to build one of his for me (for a nominal fee  Grin ) & I installed it. It works like a dream!
I highly recommend it!

TOM
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JackConrad
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« Reply #7 on: March 06, 2008, 04:28:37 AM »

We did a converter similar to Craigs, except we used "cube " relays. Here is the schematic and a photo of the completed panel.  The cube relays should have 24 volt coils.  The schematic shows the wiring to also convert from separate brake/turn signal lights on the bus to combined brake/turn signal lights on the trailer.  Jack
« Last Edit: March 06, 2008, 04:32:11 AM by JackConrad » Logged

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