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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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08-29-2016, 02:57 PM | #1 |
Not Yet Wild
Join Date: Sep 2012
Posts: 40
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36v series cart wont run.
Just bought a 36v series cart from an elder man. He put new Trojan batteries in it at the end of 2015. His grandson had been riding it when it quit. Brought it home and made sure it was charged. It doesn't have the run tow switch. Started trouble shooting it today after a bath to get all the mud off of it. Appears it was being used as a mud bogging machine when it quit. I was checking volts and with the key off and nothing on I'm getting 36v on both sides of the solenoid. The solenoid was just replaced before I got it but there's not writing on it so I'm not for sure if it's even a 36v solenoid. Where do I start?
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08-29-2016, 03:06 PM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 36v series cart wont run.
Welcome to BGW
No worries, the precharge resistor will give 36v reading on both sides of the solenoid at all times. What is the battery pack voltage? Does the solenoid click when you try to go? |
08-29-2016, 05:24 PM | #3 |
Not Yet Wild
Join Date: Sep 2012
Posts: 40
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Re: 36v series cart wont run.
Battery pack percentage is 36.9v. Solenoid doesn't click. Thanks for the quick response.
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08-29-2016, 07:20 PM | #4 | |
Master of All Things
Join Date: May 2013
Location: West Columbia, Texas
Posts: 17,995
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Re: 36v series cart wont run.
Quote:
JohnnieB's SoC Chart.JPG with the key ON and when you start to push on the "gas", the solenoid should CLICK (ACTIVATE) if it doesn't you need to look at the solenoid activation circuit. that's the drawing below, the circuit is highlighted. Wiring Diagram Series with Solenoid Activation Traced.JPG but before you get started on that....you mentioned that the "KIDS" have been mud bogging......remove the floor matt and you will find a removable access cover (its about 5 or 6" square) below it is the ITS, its not watertight and might have gotten water/mud in it, causing the cart to stop running. remove its cover (4 screws) . clean/dry it out....you can use a hairdryer if need be. those are good starting points. |
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08-29-2016, 09:37 PM | #5 |
Not Yet Wild
Join Date: Sep 2012
Posts: 40
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Re: 36v series cart wont run.
Okay so voltage leaves the batteries and the goes to the ignition interlock. The goes to the foward (or reverse) switch. Then leaves there and goes to the key switch. Than leaves there and goes through the pedal bow and then on to the solenoid. This is all 36v on the series cart right. 36v goes through everything I just mentioned but when the solenoid is activate it let the amps rip to the motor. I'm pretty good at electrical because it's what I do. But, these carts don't run on 480 v 3 phase lol.
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08-29-2016, 11:22 PM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 36v series cart wont run.
So you probably already know the path yo described is the (+) side of the circuit and it takes + and - at the small solenoid terminals to activate the internal coil and draw the contact closed (click). Typically the (-) side comes from the solenoid.
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08-29-2016, 11:24 PM | #7 |
Gone Wild
Join Date: Mar 2016
Posts: 379
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Re: 36v series cart wont run.
Sir nuke is correct on the pack voltage being low(nearly dead)
I am currently recuperating the batteries in the one I did back of this as my sales buddy let the pack drain and didn't charge it for a month or so before letting me know I just hope it didn't ruin a battery due to that(not fun!) |
08-30-2016, 06:25 AM | #8 |
Gone Wild
Join Date: Aug 2014
Location: fletcher,nc
Posts: 601
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Re: 36v series cart wont run.
think of a 36v cart as a 38v cart...low voltage(36v)can cause all kinds of strange symptoms,so get that pack up before you troubleshoot further....also-on a cart NEVER ground anything to the frame.... good luck
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08-30-2016, 11:53 PM | #9 |
Not Yet Wild
Join Date: Sep 2012
Posts: 40
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Re: 36v series cart wont run.
Thanks I didn't know about grounding to the frame. I'll make sure everything is grounded the the battery. Carts are a whole different world but hey, I love to learn these things and with you guy knowledge I know I can get her going again. Maybe the batteries aren't shot. I know it's got Trojan 105s in it and their pricey. I'm not into a lot of speed but I like the torque.
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08-31-2016, 09:32 AM | #10 |
Not Yet Wild
Join Date: Sep 2012
Posts: 40
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Re: 36v series cart wont run.
Okay so another obstacle. The batteries were not charging. The white wire coming from the charging port was almost into. I bought another terminal, crumpled it and soldered (my ocd) it and put it back on after cleaning all the battery connections and putting battery protector on them. Now when I put the battery charger on and had my flute on it started at 37v and kept climbing so that's a good sign. I had cleaned everything before but didn't have the cleaner and protector so I took the time and redone all of them. This just may of been the whole problem from the beginning. If it is I've gotten one heck of a deal on a good cart.
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