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Electric EZGO Electric EZ GO Marathon, Medalist, TXT and RXV. |
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11-30-2011, 09:53 AM | #1 |
Not Yet Wild
Join Date: Nov 2011
Posts: 31
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Brush changing process
I have a 1995 EZGO Medalist with the basic fleet motor. It is slow like 10mph so I'm changing all the battery cables to 4ga and want to change the brushes. Can someone give me the breakdown and refer me to a previous thread showing the the process with pics and what else I can change while having it opened up. The batteries are Trojan T-105 and hold charge for days and test at over 38v when freshly charged.
I have a 6" Jake's Lift kit and 23" tires going on this weekend and need the motor back to spec. |
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11-30-2011, 10:12 AM | #2 |
Happy Carting
Join Date: Dec 2007
Location: Southern California
Posts: 73,419
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Re: Brush changing process
I saved this info on:
How to Check Motor Brushes Disconnect power before testing your motor brushes. Brushes on an electric motor are effectively the electrical conductors to the motor's armature. Electricity from the motors terminals is feed through copper wires attached to carbon brushes. The brushes are held in position on opposite sides of the armature and touch a metal ring inducing electricity into the armature windings causing the armature to rotate. If the brushes are worn, your motor won't operate properly, so occasionally testing them ensures they can be replaced, before your motor stops working. o 1 Disconnect power to your electric motor, before attempting to test the brushes. Locate the two brush holders, one on each side of the armature either on the front or rear of the motor. Two copper wires extend from the brushes and connect to the terminals on the motor, so they're easy to identify. o 2 Use a pair of long-nosed pliers and remove the retaining clip that holds the one of the brushes in place. Attach your piers to the copper wire that connects to the brush and gently pull. A spring comes out of the brush holder, followed by the brush. o 3 Check the length of the carbon brush against the size of the brush holder. The brush should be 50 percent or more of the length of the brush holder. If it's less than 50 percent it needs replacing. o 4 Repeat the process on the other brush. If either of the brushes needs replacing, then always replace them as a pair. If they don't need replacing then push the brushes into the brush holders. Insert the springs and then replace the retaining clips using your pliers. If they need replacing, take the old brushes along to an electrical store, so you get exact replacements then follow the procedure for replacing then as above. Read more: How to Test Motor Brushes | eHow.com http://www.ehow.com/how_8085285_test...#ixzz1OVgWh4Me |
11-30-2011, 10:54 AM | #3 |
Gone Wild
Join Date: Jul 2011
Location: Houston, TX
Posts: 2,901
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Re: Brush changing process
That's good information flright there.
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