CC DS 2003 - Hot Motor

[fsu1tm]

A friend has a 2003 CC DS, serial number AQ0316-376185. It's stock except for the lights, 2ga cables on the batteries (along with the one that goes thru OBC to controller but not motor cables), and D&D Motor model 170-506-0002. Since he purchased it a few years ago, the motor has always made a whine sound. I just figured it to be a symptom of a high speed motor. Well now when he drives the cart, he only gets about 5 miles before the batteries are depleted and the motor is too hot to touch. We've tested his 2 year old T-875's both still and under load and they all appear to be good.

I will add that he says when the motor gets real hot (too hot to place his hand on) he is at WOT. He also says that the motor doesn't get as hot when driving slow but battery life is still suspect.

I'm thinking he may have a bad motor bearing or brushes. Has anyone else dealt with this?

TIA

[Tom47]

Just how hot is the motor getting? Use a contact or infrared thermometer to check it. I'm not sure what the maximum motor heat temperature should be, but 140 degrees will burn your hand. And this is a normal operating temperature.

I would suspect the original motor wires which are 6 gauge. The two gauge on the rest of the cart can provide more amperage to the motor than the motor wires can handle.

Battery drainage that fast is an issue that may or may not be related.

[fsu1tm]

The cables were changed shortly after he purchased the cart so the cart has been operating fine with them for a while. His battery range prior to recently was around 18-20 miles.

[kgsc]

Make sure the brakes are releasing and the cart rolls free. After that it could be the brushes are worn out and not making good contact so generating heat.