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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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Thread Tools | Display Modes |
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05-03-2012, 07:36 PM | #1 |
Getting Wild
Join Date: May 2012
Posts: 75
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1993 marathon solenoid clicking cart wont go
93 marathon wont go but clicks at microswitch and solenoid. I have 35.8 volts at solenoid and without mashing pedal i have 32 on controller side of solenoid. B plus on controller has the same 32 volts going to a2 on motor. the selector wires on motor s1 and s2 all have 32 until i mash the gas full on and i have the 35.8. what is going on here i just acquired this junk from a friend. i jacked up the cart and wont turn the wheels at all.
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05-03-2012, 07:40 PM | #2 |
Getting Wild
Join Date: May 2012
Posts: 75
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Re: 1993 marathon solenoid clicking cart wont go
solenoid is passing the 35.8 volts when gas is pressed
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05-03-2012, 08:15 PM | #3 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,418
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Re: 1993 marathon solenoid clicking cart wont go
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05-03-2012, 08:22 PM | #4 |
Getting Wild
Join Date: May 2012
Posts: 75
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Re: 1993 marathon solenoid clicking cart wont go
i test b + to the m- on the controller in forward with key switch on and depress pedal and have no voltage , is this a bad controller.
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05-03-2012, 08:47 PM | #5 |
Getting Wild
Join Date: May 2012
Posts: 75
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Re: 1993 marathon solenoid clicking cart wont go
one more thing i built a new battery frame and when i reset the potentiometer in cart it wouldnt engage microswitch so i moved the vertical linkage rod to where the microswitch is hit just as the pedal goes down. could i have this so far out of range that it wont let any voltage through the controller. Cart was running two months ago before i rebuilt battery tray.
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05-04-2012, 07:28 AM | #6 | |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 1993 marathon solenoid clicking cart wont go
Quote:
When the pedal is pushed, the lever is released and a spring inside the microswitch closes the NC contacts, thereby completing the solenoid activation circuit. Sounds like the solenoid is closing, so the microswitch adjustment is at least in the ballpark. Instead of going from B+ to M-, try going from B- to M-. That puts your DVM directly across the MOSFETs inside the controller and only the MOSFETs. When the solenoid first clicks, you should be reading full battery pack voltage. IF not, there is something wrong with the high current cables, main solenoid contacts, F/R switch or motor winding. If so, the reading should decrease to almost zero as the pedal is pushed to floor. If that doesn't happen, check for battery voltage at push-on terminal on controller with blue wire on it. That's what turns the controller on. It should be there whenever key is on and F/R is in either F or R. If that is good, pull the black and white wires on the other two push-on terminals on the controller and measure the Ohms as the pedal is pushed. I'm not sure if it will be 0-5K or 5K-0, but it ought to vary in that general resistance range. If all of the above checks out, you've pretty much eliminated everything except the controller. |
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05-06-2012, 05:29 PM | #7 |
Gone Wild
Join Date: Apr 2012
Location: South Louisiana
Posts: 488
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Re: 1993 marathon solenoid clicking cart wont go
An option for testing the battery I use is Scotty's diagram but only used one 12v battery. You can spin the motor without it going ba!!s to the wall.
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05-09-2012, 09:36 PM | #8 |
Getting Wild
Join Date: May 2012
Posts: 75
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Re: 1993 marathon solenoid clicking cart wont go
Well my ride is fixed. I got me an altrax 300amp controller and put on it and it runs like a brand new one. Thanks for all the help guys.
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05-10-2012, 01:09 AM | #9 |
Techno-Nerd
Join Date: Jun 2011
Location: West Virginia
Posts: 19,654
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Re: 1993 marathon solenoid clicking cart wont go
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