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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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09-03-2011, 07:39 PM | #1 |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Curtis 1205
I posted awhile back about my controller being bad and I was going to attempt to take it apart and see what's inside! This was the day, and it went well with getting the cover off. I used a dental pick to remove the sealer from around the six screws and they came out easily. So did about a tablespoon of water!I then removed the seal at the lug end and slid out the electronics. The way the controller is mounted is on it's side with the pot wires on the bottom. I'm sure this resulted in a partial short causing my cart to move without throddle control! So my plan is to clean up the circuit board where corrosion is actually connecting pins together, dry it out real well, and see if it works properly. Nothing lost if it doesn't, right. Ok, I'm curious of how a " sealed " unit got water in it to begin with? Also can I mount the controller where it won't get wet, but there is no appreciable air movement? I'm not sure how much cooling it needs ( if any ). The whole outside cover in effect is one big heatsink. I'd like to get all this worked out before I upgrade to 48V.
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09-03-2011, 08:56 PM | #2 |
Gone Wild
Join Date: Jun 2010
Location: Central Florida
Posts: 2,757
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Re: Curtis 1205
even the best seals will still alow some moisture in and controllers are not sealed the best to begin with.....
As for remote mounting it, as long as you mount it to a nice thick piece of aluminum, I don't see an issue...... |
09-04-2011, 08:17 AM | #3 | |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Curtis 1205
Quote:
Thanks for the info! I have a storage compartment that is enclosed. I'll move the controller there. It is originally mounted on a steel bracket next to the right wheel. It could get wet if you went through puddles or even just driving when it's wet. What do you recommend as a heatsink? I have various sizes of aluminum plate available to me at a recycling yard. I did check the motor and controller once ( after a fair drive ) and both were only warm. I was totally amazed at the amount of water that was in it when I opened it up! |
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09-04-2011, 09:10 AM | #4 |
Gone Wild
Join Date: Jun 2010
Location: Central Florida
Posts: 2,757
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Re: Curtis 1205
I like to use a 1/4 in plate slightly larger than the controller itself.
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09-04-2011, 12:04 PM | #5 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Curtis 1205
FWIW - To get a good heat transfer to the aluminum plate, clean off the aluminum oxide (Dull finish) on both the controller and heatsink where they come in contact.
Also, a thin layer of thermal compound will help. The cheap stuff from Radio Shack for mounting heatsinks on CPU chips will work. I know some will think it is overkill, but I prefer over-kill to under-kill. BTW, Nice job of "fixin" your controller. Didn't happen to take any pictures did you? |
09-04-2011, 06:54 PM | #6 | |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Curtis 1205
Quote:
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09-04-2011, 09:53 PM | #7 |
Gone Wild
Join Date: Oct 2010
Location: Panama City, FL
Posts: 1,408
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Re: Curtis 1205
like this?
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09-04-2011, 11:02 PM | #8 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: Curtis 1205
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09-05-2011, 07:49 AM | #9 |
Gone Wild
Join Date: Aug 2011
Location: Bunnell, Florida
Posts: 2,408
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Re: Curtis 1205
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