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Old 10-09-2014, 04:36 PM   #1
rossmnz
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Default Ezgo Charger unknown and parts?

Hi Everyone,

We use a 1992 marathon electric cart at our work, the buggy still works fine albeit a bit slower than it used to be.. But recently have run into problems with charging, i have a feeling the plug might have been put in backwards and reversed polarity but unsure (plug was damaged) any ideas where to check?
Also it uses an old ezgo textron automatic charger, its just plain white and doesnt say much more on it except the S/N: 8410367. Had trouble fin ding a diagram for it and doesnt seem to have a capacitor like most.
Unfortuanately while i was testing the diodes and transformer i managed to break off a leg on a part im unsure of... i have attached some pics of the part and charger. Tried contacting a local store but they didnt recognise it.

Any help would be much appreciated
Cheers
Ross
Attached Images
File Type: jpg ezgo.jpg (213.0 KB, 0 views)
File Type: jpg ezgo2.jpg (214.2 KB, 0 views)
File Type: jpg ezgo3.jpg (131.7 KB, 0 views)
File Type: jpg ezgo4.jpg (95.8 KB, 0 views)
File Type: jpg ezgo5.jpg (191.0 KB, 0 views)
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Old 10-09-2014, 05:32 PM   #2
HiTechRedNeck
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Default Re: Ezgo Charger unknown and parts?

Diode--or SCR (Silicone controlled rectifier)
Will get part number tomorrow

Was part attached to heat sink ?

Please post pic of where part goes?
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Old 10-09-2014, 06:05 PM   #3
rossmnz
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Default Re: Ezgo Charger unknown and parts?

Thankyou!

If you look in the first pic you will see a hole in the lower middle of the heatsink where it attaches. Its connected to the circuit breaker off one terminal and a small controll board of some sort off the other.

Cheers!
Ross
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Old 10-09-2014, 06:59 PM   #4
HiTechRedNeck
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Default Re: Ezgo Charger unknown and parts?

Part # on side of SCR?
Having trouble finding parts list for old charger.
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Old 10-09-2014, 07:21 PM   #5
HiTechRedNeck
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Default Re: Ezgo Charger unknown and parts?

Scottyb's Carts Unlimited

Maybe he has parts list?
can cross part with number on part itself (if still readable)

But part is a scr.
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Old 10-09-2014, 09:44 PM   #6
cgtech
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Default Re: Ezgo Charger unknown and parts?

I think that part was originally supposed to be a diode, not a SCR. SCRs are usually found in newer, more advanced "microprocessor controlled" chargers. Some of the folks around here have the service books for these chargers, maybe that info will pop up.
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Old 10-09-2014, 10:23 PM   #7
rossmnz
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Default Re: Ezgo Charger unknown and parts?

Only thing i can see on it is 635... any help?

Thanks again
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Old 10-10-2014, 08:03 AM   #8
JohnnieB
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Default Re: Ezgo Charger unknown and parts?

The key information is in the second picture.

Bottom of black label reads: "Input: 230 VOLTS, 4Amps, 50Hz"

The silver label indicates the vendor is in New Zealand, as does the last two letters (nz) in the username of the poster.

So I suspect we have a very old charger made for the international market.

Since the poster stated that one of the two terminals on the top of the item in pictures 4 & 5 was broken off, we have a three terminal device. I believe the two terminal we can still see are the Anode (stud) and the Gate, so the Cathode terminal of the SCR is broken off.


------------
I don't have a schematic, or any information about this type charger in my stash.

With some detailed pictures of the PC board and other inside areas, I might be able to figure out how it works, but only to the block diagram level, so figuring out what SCR to use isn't likely.

--------------
Best bet would be to contact EZGO.
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Old 10-10-2014, 04:26 PM   #9
HiTechRedNeck
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Default Re: Ezgo Charger unknown and parts?

johnny b has no info-- This is bad news.

Sorry i have struck out. Cant find anything in our sources.
Part is SCR -- just which one.


Might be time for new charger.
Sorry i was no help.
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Old 10-12-2014, 02:07 PM   #10
rossmnz
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Default Re: Ezgo Charger unknown and parts?

Hi everyone thankyou for all your help!

After a alot of phone calls i managed to find out the part, as was mentioned maybe it was a charger more specific to New Zealand and why i had more luck here.
It is an SCR p/n: 50RIA60. Lets hope this is the problem.

Thanks again
Ross
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