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Installing a voltmeter

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TimmyG185 View Drop Down
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Joined: 05 Sep 2023
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimmyG185 Quote  Post ReplyReply Direct Link To This Post Topic: Installing a voltmeter
    Posted: 12 Sep 2023 at 11:34pm
While working on my 185, I noticed the wire to the alternator is totally fried as well as to the starter. I’m replacing the wires and the amp meter and putting in a volt meter. I was gonna run my alternator directly to my battery and sill have the starter run to the + side of the voltmeter. I’m no wire guru so I’m hoping I can get my buddy out here sometime soon to lend a hand but in the meantime I’m wondering if someone can provide me with some advice. Thanks!
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DrAllis View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2023 at 11:38pm
Just route wiring like it originally was. Running direct to the battery cable end will be nothing but maintenance keeping it clean and tight. It does nothing to improve performance.
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TimmyG185 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimmyG185 Quote  Post ReplyReply Direct Link To This Post Posted: 12 Sep 2023 at 11:46pm
Oh ok. The starter was hooked up to one side of the amp meter and the alternator was hooked up to the other. So on the voltmeter would I hook the starter to the positive and alternator to the negative then?
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KJCHRIS View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote KJCHRIS Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2023 at 2:57am
 I'd hook voltmeter to a "LIVE w/key on" terminal on key switch that way it will only show voltage with key switch ON. 
 Have you determined why the wire was burnt? 
 Amperage/current flows thru the ammeter so it can show the Amps. flow from Alt to ammeter to 1/2" battery terminal on starter. 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2023 at 8:28am
Tim.... a volt meter and amp meter work on completely different principles.. An AMP meter goes IN THE LINE to see what is passing thru it.. A VOLT meter goes AROUND the line to see what voltage is in the WIRE.... This is not your specific system, but look how the VOLT METER is connected .... normally you just go from a HOT WIRE to the GROUND ( frame) of the tractor....you want your voltmeter to TURN OFF when you turn the key off... thats why it is not connected to the battery or alternator terminals.







Edited by steve(ill) - 13 Sep 2023 at 8:38am
Like them all, but love the "B"s.
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2023 at 8:31am
presently your AMP meter is IN LINE between the  battery + ( starter lug) and the alternator...



Like them all, but love the "B"s.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote TimmyG185 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Sep 2023 at 2:03pm
Oh ok awesome that makes sense thanks
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