Does a bad solenoid slow the cart down?

[kantuckian]

Thanks Good info

[aaron_ssn752]

Hi guys I have a similar issue with my ‘96 DS 48V regen cart. It is bone stock and runs about 10-12 mph on flat pavement. Once you get on a grassy hill though it will barely move. Torque is super low in forward and reverse. However, while at full speed on the street (10-12mph) last fall, I heard what sounded like a solenoid click and she jumped in speed from 10/11 to about 15/16mph. Also had LOADS of torque on hills. Two weeks later the computer died and after I replaced it the speed and torque were back down. I ran through all of the troubleshooting steps in the CC factory manual and everything was fine with a DVM. I am wondering if the braking solenoid might be bad as was the case here, and how exactly you go about bypassing it (which wires to move to the other relay, etc.) Any help you can provide is much appreciated!


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[Sergio]

It sounds like the Dynamic Brake Solenoid failing and putting the resistor inline with the Motor.

The Dynamic Brake solenoid is the one connected to the resistor coil.

Place both White cables on the same post on that Solenoid. That is the White cable from Motor A2 and the White cable from controller A2.

Disconnect the speed sensor.

That is it, the cart will run as faster but without Regen brake.

[aaron_ssn752]

Thanks Sergio! So just to make sure I’m clear on your guidance, does it matter which post I connect the two white wires together on?

Also for the speed sensor, I’m not sure where that is connected. On the motor I assume, but not sure which connection that is. Thanks a million!

I tried to post pics but Tapatalk won’t allow it until I’m a member for 7 days [emoji53]


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[Sergio]

Either solenoid post, when both of those White cables are connected together the Solenoid is irrelevant.

You can also disconnect the small activation wires connected to the Dynamic Brake Solenoid coil and tape them.

The speed sensor is on the end of the motor (passenger side) and it has 3 wires.

Just disconnect the sensor plug.

[aaron_ssn752]

***Update: I just moved the white wires onto the same pole on the braking relay and disconnected the speed sensor plug on the motor and she ran GREAT for about 3 minutes. Then power cut completely out a couple times momentarily and now she won’t budge. Makes me wonder if the other solenoid isn’t bad also. Or the speed controller. Now when I turn the key on, the main solenoid no longer clicks. When I press the accelerator it surges forward about a half inch and then stops for good. [emoji53]


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