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Electric Club Car Electric DS, and Precedent golf cars |
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10-08-2012, 01:15 PM | #1 |
Not Yet Wild
Join Date: Oct 2012
Posts: 9
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1996 Series DS 48V won't move on ground, wheels barely move on jacks
Guys
I am working on a 96 Series 48v (has large forward/reverse knob). The cart stopped working on them and a friend told them it was the speed controller, which has NOT been replaced. I went through the troubleshooting guide from start to finish and can't find anything wrong with it other than the pot resistance high when pedal is fully down but does increase from open with pedal up to high with pedal down. It has a "continuously variable potentiometer", NOT a VGlide or MCOR. What I've discovered is, on the ground when the go pedal is pressed, nothing. On jacks when the pedal is pressed the right rear turns very slowly and can be stopped with your foot. Pack voltage is over 50 volts at rest and when pedal is depressed. Solenoid clicks, controller output voltage increases to pack voltage when pedal is fully depressed. I checked half speed reverse limit switch and resistor, all good. Checked for shorted motor A1,A2, S1, S2 to case as well as continuity between A1,A2 and S1, S2 with no issues. I'd think if it was the high resistance in the pot it would still vary speed as pedal depressed but doesn't seem to. I am wondering if this is a bad motor issue. This is the potentiometer test: Test Procedure 9 - Continuously Variable Potentiometer: 1. Disconnect the three-wire connector (connects the potentiometer to the Forward/Reverse wire harness) from the Forward/Reverse wire harness. The connector emerges from under the floorboard into the battery compartment below the charger receptacle on the front seat support panel (Figure 17-9). 2. Connect multi-meter, set to “ohms” position, between the purple and yellow wire terminals. Resistance should read between 150 and 300 ohms at exactly the point that the limit switch is activated. 3. Depress the accelerator to the floor; potentiometer resistance should measure between 4600 and 6400 ohms. I got: Pedal up- open switch activated- all over the board from 500 ohms to 1.5 k ohms pedal full down - 7k-8k ohms any ideas? |
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