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| Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
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04-26-2022, 08:50 AM
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#1 |
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Not Yet Wild
Join Date: Mar 2016
Posts: 15
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difference forward backward power torque
I have a g22:
Batteries 6 New Trojan 8V 890 - 51,6 V Controller: FSIP Nr. 51-FX302G027 Motor: D&D Motorsystem Nr. 170-505-0001 when i drive on the street the cart feeels ok but on the beach the cart has not much power and a small pile of sand is enough to stop him. but when i change F1 and F2 ( i know the direction forward backward changes, buzzer is not connected) then he has enough power to drive through the sand but he is very slow on the street. What could be the problem or is this normal? many thanks |
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04-26-2022, 11:00 AM
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#2 |
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Gone Wild
Join Date: Nov 2013
Location: Western NY
Posts: 642
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Re: difference forward backward power torque
You have a voltage supply issue.
Reverse on the controller applies half the voltage and provides more current. Cars with near dead batteries will still move in reverse. |
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04-26-2022, 03:43 PM
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#3 |
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Not Yet Wild
Join Date: Mar 2016
Posts: 15
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Re: difference forward backward power torque
Thank you.
How can i repair it? |
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04-27-2022, 05:55 AM
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#4 |
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Gone Wild
Join Date: Nov 2013
Location: Western NY
Posts: 642
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Re: difference forward backward power torque
Find out why you have a voltage supply issue.
Is it a weak battery? Corroded or loose cable? Bad solenoid? Loose or bad cable on the motor? |
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07-06-2022, 07:02 AM
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#5 |
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Not Yet Wild
Join Date: Mar 2016
Posts: 15
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Re: difference forward backward power torque
I´ve checked the batteries and every cell is fine. i also put new cables in.
i disassembled the motor and found that three of the four brushes did not move because of the carbon dust. Could that be the problem? |
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07-06-2022, 08:23 AM
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#6 |
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Gone Wild
Join Date: May 2012
Location: Rio Verde, Az
Posts: 7,171
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Re: difference forward backward power torque
Yes - motor brushes can affect motor operation differently in Fwd and Rev.
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| Tags |
| controller, g22, motor, torque |
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