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Farmall & IHC Tractors Discussion Forum
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International 2404 ampmeter

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Don2404

05-18-2006 17:42:19




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Is it possible to put an ampmeter on the 2404 ? if so what does the + and - get hooked to ?
I am pretty sure the + gets put on the ignition terminal but don know about the other.
your help is greatly appreciated
Don




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Janicholson

05-19-2006 06:11:35




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 Re: International 2404 ampmeter in reply to Don2404, 05-18-2006 17:42:19  
Amp meters measure the flow of electrons into and out of the battery except for the starting current (which is way too much for that small meter). Thus the wire that feeds the entire tractor (usually from the battery side of the solenoid) is re-routed to flow through the Amp gauge. The wire you use should be equal in size (and color) to the original wire if your charging system is stock. If you have a high amp alternator (45-60A), the wires should be 10ga if even higher 8ga would be safe to the alternator, and to your new amp gauge. Keep the wires tidy and routed to avoid sharp edges, they can cause fires. I always use a fusable link in my wiring (not mentioned too much in discussions) which limit the amps flowing through the various wires to the rating of the alternator, + 10%. So for a fifty Amp alternator, a 55 amp fusable link is perfect. They are available at NAPA and other fine stores. The link goes in series with the wire you will connect to your Amp meter, and the Bat side of the solenoid.
Use spade terminals to do the connection, and tape or shrink tube to prevent shorting.
The Meter will not care which way it is installed. to make sure + and- are correct befor you put it in, run a wire to the non-grounded side of the battery to one terminal of the amp gauge (temporary connections are needed here) then use another wire to go to the back of a headlight. to make it shine. The gauge polarity is correct when the gauge reads discharge with the headlight on. The solenoid side will be the same as the one now connected to the battery non-ground, and the load side will be the other.

Last item is use an amp gauge with a top scale reading big enough for the fuse link. In the example above, for 55A use a meter with 60+ and 60- numbers on the dial. Meters smaller can have their shunt burned out by being subjected to mor than rated amps. Good luck I hope I helped. Keep us updated on the progress.
JimN

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