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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV.



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Old 08-19-2016, 08:16 AM   #11
kernal
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Default Re: Marathon burns up solenoid again and again

So, the manufacturers code indicates a '94 but the serial no. indicates a '97 electric Medalist. From the picture I can see where the cart could be a medalist or a TXT or a combination of the chassis/body but I don't see any Marathon DNA at all.
Of course non of this has anything to do with your problem except the wiring should be looked at from a series perspective I think.
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Old 08-19-2016, 10:04 AM   #12
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Default Re: Marathon burns up solenoid again and again

Those batteries look pretty old and they are the 1800 series which have a shorter life span. What is the pack voltage at rest and what is it while driving?

Extremely low pack voltage could have been killing the stock EZGO solenoids.
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Old 08-19-2016, 10:25 AM   #13
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Default Re: Marathon burns up solenoid again and again

from photos
it has a Reversing contactor kit
HD Solenoid, 400A, 36V
With this solenoid, 3 Amp Diode and 220 Ohm Resistor with 3/8" Ring Ends

red wire on main pack negative ??

red wire from B- controller stud ??
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Old 08-19-2016, 01:57 PM   #14
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Default Re: Marathon burns up solenoid again and again

rabbitreborn - The batteries are getting a little up there in age but they are supposed to have a couple of years left. Needless to say she had both mechanics that she took it to test the batteries and they said they were fine. I have not checked them myself but I will this weekend to be on the safe side.

crash test dummy - I am trying to get a 3 amp diode here as soon as possible.

As for your other questions, the red wire on the main pack negative runs to a bus bar I installed for good ground connections for lights and other accessories on the cart.

The red wire from B- controller stud is running to the negative on the bottom of the Reversing contactor. That's how it is shown in the wiring diagram for the reversing contactor.
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Old 08-19-2016, 02:23 PM   #15
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Default Re: Marathon burns up solenoid again and again

change them to black wires ... just my way of wiring things red positive .. black to ground
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Old 08-19-2016, 02:59 PM   #16
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Default Re: Marathon burns up solenoid again and again

I normally do as well. Just happen to be given the roll of red and didn't have any black at the time.
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Old 08-19-2016, 06:46 PM   #17
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Default Re: Marathon burns up solenoid again and again

Could it be a bad throttle sensor? I opened the panel to check the micro switch to see if it was working and I see this pictures below. It looks like the inside of the sensor has melted.
Attached Images
File Type: jpg IMG_20160819_190215256.jpg (245.0 KB, 0 views)
File Type: jpg IMG_20160819_190239423.jpg (171.6 KB, 0 views)
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Old 08-19-2016, 06:49 PM   #18
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Default Re: Marathon burns up solenoid again and again

Quote:
Originally Posted by Scottie87 View Post
Could it be a bad throttle sensor? I opened the panel to check the micro switch to see if it was working and I see this pictures below. It looks like the inside of the sensor has melted.
hey,


lol what is that junk in there?? never seen that happen in all the "doughnut" sensors i have changed out
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Old 08-19-2016, 06:49 PM   #19
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Default Re: Marathon burns up solenoid again and again

thats definitely not normal i can tell you that lol looks like epoxy
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Old 08-19-2016, 07:07 PM   #20
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Default Re: Marathon burns up solenoid again and again

I thought the same thing but don't know why epoxy would be in there.
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