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06-06-2011, 08:52 AM | #1 |
Not Yet Wild
Join Date: Jun 2011
Posts: 5
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Lost of speed and climbing ability
Suddenly my cart has lost approx half it's speed and crawls up grades. seems to charge okay and range is still good. I think someone may have installed the wrong motor at some point in the past. As far as I can tell it is a CC '02 IQ S/N AQ0221 - 150312. there is a 2nd S/N of NQ0299 - 150312 with code A 089: B 001: C 184. the motor is a GE cat # D390 model 5BC58JBS6381. the controller is a Curtis PMC model 1510-5201 48v 250 amp. The obc is from Lester Elect part3 21155-02. Any help in determing what caused the loss of power and speed would be appreciated.
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06-06-2011, 08:59 AM | #2 |
The Last Moja Morani
Join Date: Jan 2007
Location: jumping from cart to cart
Posts: 8,975
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Re: Lost of speed and climbing ability
welcome, is it a 2002? if your motor has a speed sensor and the cart has the M-cor for the speed system those would be 2 likely places to start.........there are some guys here who know much more about it but do you have the F&R lever or the rocker switch? and 1 or 2 soleniods?......how old are the batteries and have you checked them and your cable connections to make sure all are clean and tight?...................................
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06-06-2011, 09:02 AM | #3 |
Gone Wild
Join Date: Mar 2009
Location: South Texas
Posts: 2,391
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Re: Lost of speed and climbing ability
Go to basics and test batterys for condition. If batterys are not up to full power you wont get the speed nor power you had before. If batterys test good then I would check motor speed sensor by having cart in ( RUN )and in ( forward ) and push by hand and see if cart slows down or is ( free rolling which means speed sensor or magnet is cracked or bad )
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06-06-2011, 09:13 AM | #4 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Lost of speed and climbing ability
The D390 was an aftermarket high speed motor. It was designed to work with the stock controller but would respond better to a larger control. If the batteries and connections all check out I would suspect the brushes have worn if the motor has seen a few years of use.
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06-06-2011, 09:13 AM | #5 |
Not Yet Wild
Join Date: Jun 2011
Posts: 5
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Re: Lost of speed and climbing ability
Thanks for the prompt response. has rocker switch and "run"/"tow" toggle. batteries checked and connections clean. Not familiar with"M-cor" Before motor was changed, the cart would "brake" and charge meter go up when going down hill. since motor was changed, cart accerates coasting down hills.
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06-06-2011, 09:14 AM | #6 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Lost of speed and climbing ability
Thant is normal. Is the motor new?
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06-06-2011, 09:19 AM | #7 |
Not Yet Wild
Join Date: Jun 2011
Posts: 5
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Re: Lost of speed and climbing ability
The motor is now about 4 years old. Is it true that regen motors have connection posts with different diameters? This one has posts all the same diameter.
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06-06-2011, 09:21 AM | #8 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,358
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Re: Lost of speed and climbing ability
There is no way you went 4 yrs with the wrong motor.
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06-06-2011, 09:29 AM | #9 |
Not Yet Wild
Join Date: Jun 2011
Posts: 5
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Re: Lost of speed and climbing ability
Where can I get info on checking/changing the brushes?
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06-06-2011, 10:31 AM | #10 |
The Last Moja Morani
Join Date: Jan 2007
Location: jumping from cart to cart
Posts: 8,975
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Re: Lost of speed and climbing ability
you,ll have to pull the motor to check and or change brushes.......if you do be careful with the nuts they are double nutted you,ll have to hold the inner ones to break outer ones loose..............................
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