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10-19-2019, 02:16 PM | #1 |
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model a amp meter
My amp meter is showing a 10 amp discharge when driving. I sort of forgot if you should push the brush up or down ?? What say you ? Thank you in advance !!
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10-19-2019, 03:02 PM | #2 |
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Re: model a amp meter
You should push down on the adjustable third brush to increase charge rate .
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10-19-2019, 03:02 PM | #3 |
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Re: model a amp meter
Lights on or off?
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10-19-2019, 03:05 PM | #4 |
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Re: model a amp meter
Put a voltmeter on the battery first. Could be someone reversed polarity on the car without changing meter polarity, or several other reasons.
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10-19-2019, 04:12 PM | #5 |
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Re: model a amp meter
Lights off
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10-19-2019, 04:26 PM | #6 |
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Re: model a amp meter
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10-19-2019, 04:27 PM | #7 |
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Re: model a amp meter
Not much info.
Needle at zero when not running ? Needle show discharge with lights on, engine off ? |
10-19-2019, 07:22 PM | #8 |
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Re: model a amp meter
Needle at zero when not running . Lights are not hooked up
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10-19-2019, 09:21 PM | #9 |
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Re: model a amp meter
On what side of the battery is the ground strap?
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10-20-2019, 06:28 AM | #10 |
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Re: model a amp meter
No lights, well, we need to know how the ammeter is hooked up. You could be charging with the ammeter backwards. Or you may not be charging and the ammeter is correct. You appear to be 6v with generator which means the positive battery lead goes to ground. If you feed power to the generator with the belt off or loose the generator should spin or try to spin. Jumping across the cut-out will polarize the generator which might be what is needed. There is a lot of info we need to know.
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10-20-2019, 09:07 AM | #11 |
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Re: model a amp meter
Polarity will affect the ammeter as was mentioned. A 10-amp discharge indicates high resistance somewhere as well. Just an ignition system won't draw that much. Condition of wiring, polarity, properly connected devices, and condition of the generator can all have an effect. Is this an original ammeter, or a reproduction? Reproduction units are not worth a crap. Make sure the electrical system is properly connected and ground paths are good and clean before doing any adjustments. The battery needs to be in good condition as well. A bad battery can kill a generator. The cut out needs to be functional as well.
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10-20-2019, 12:03 PM | #12 |
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Re: model a amp meter
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10-20-2019, 06:04 PM | #13 |
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Re: model a amp meter
The positive side is grounded.
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10-20-2019, 06:41 PM | #14 |
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Re: model a amp meter
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10-20-2019, 06:45 PM | #15 |
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Re: model a amp meter
Which color wire goes to which side ?? Thank you
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10-21-2019, 11:09 AM | #16 |
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Re: model a amp meter
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10-21-2019, 12:00 PM | #17 |
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Re: model a amp meter
This is an excellent sight for answers. https://modelagarage.com/electrical/
If your lights aren't connected. Make sure that the light switch, associated wiring, and lamp assemblies are all connected properly and that the wiring is in good condition before switching the lights on. On an original amp meter, just turning on the ignition should show a slight discharge unless the points are open. Cranking the starter will make the needle swing back & forth until it starts. With the different types of cut out products and also the Fun Projects voltage regulator that looks like a cut out, a person needs to know what they have there. It can affect how the amp meter indicates a reading. |
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