Clinician
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Post by trvstlh on Jul 23, 2012 12:38:21 GMT -6
hello fellas, when i replace the rectifier on my scoot (battery not charging), should i also replace the diode?  ?? thanks in advance. |
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Doc's Anything Goes
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Post by tvnacman on Jul 23, 2012 12:59:21 GMT -6
What kind of scooter?
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Clinician
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Post by trvstlh on Jul 23, 2012 13:03:36 GMT -6
sorry, jonway yy250t. thanks
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Doc's Anything Goes
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Post by tvnacman on Jul 23, 2012 13:46:03 GMT -6
How many wires/pins ?
John
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Post by Cruiser on Jul 23, 2012 21:03:32 GMT -6
hello fellas, when i replace the rectifier on my scoot (battery not charging), should i also replace the diode? ?? thanks in advance. The diode works independently of the regulator/rectifier. Only replace the diode if it is defective. Many people do a relay substitute when the the diode goes bad. Some do the relay substitute just to gain a little charging voltage. If the diode is open, the battery will not charge. If it is shorted, your headlights will be on all the time. |
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Post by trvstlh on Jul 24, 2012 7:03:45 GMT -6
2 plugs, 3 pins each plug, is there a way to know or find out if the diode is bad?? and can the rectifier alone be the reason battery is not charging?? thanks in advance
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Post by trvstlh on Jul 24, 2012 7:05:22 GMT -6
Cruiser how do i find out if the diode is open?? when i have the rectifier plugged in and probe wires on battery side i get a good reading, when i probe on rectifier side i get little or NO reading...why i assumed rectifier is bad
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Post by nulldevice on Jul 28, 2012 18:14:07 GMT -6
Disconnect the diode and use the ohms setting on your meter. Take two readings, one forward, one reversed with your probes. You will get a reading one way and not the other if the diode is good.
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Doc's Anything Goes
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Post by tvnacman on Jul 28, 2012 19:01:16 GMT -6
Disconnect the diode and use the ohms setting on your meter. Take two readings, one forward, one reversed with your probes. You will get a reading one way and not the other if the diode is good. 2nd this Just unplug the diode and check John |
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Post by Cruiser on Jul 28, 2012 19:57:07 GMT -6
Cruiser how do i find out if the diode is open?? when i have the rectifier plugged in and probe wires on battery side i get a good reading, when i probe on rectifier side i get little or NO reading...why i assumed rectifier is bad Actually, this is normal. However, you will get the same results if the diode is open. If you don't have much confidence in doing the forward and reverse resistance check on the diode, you can measure the DC voltage on both pins of the diode with the engine running. The voltage on the battery side should be within .7 volts of the voltage on the regulator/rectifier side. You should be reading at least 13.2 to 13.5 volts on the battery side. You should also be able to read this on the positive terminal of the battery. |
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