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Farmall & IHC Tractors Discussion Forum
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706 gas schematic needed badly

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Matt Ward

08-04-2005 11:07:10




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Hi, Dad and I have a 706 gas that we use for light duty around our farm and it has developed a parasitic 3 day drain on the battery. I really need a schematic for this tractor, all of our books have a wire diagram but no color coding or circuit descriptions. Don't know how, but this is the only IH we don't have one for. Could some kind soul out there scan one and email it to me?




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K.B.-826

08-04-2005 16:10:42




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 Re: 706 gas schematic needed badly in reply to Matt Ward, 08-04-2005 11:07:10  
Matt, visit your local Case-IH dealer and ask the service manager to make you a copy of the diagram. They'll gladly do it. The diagram is in black, but it's labeled. Easiest way to find a drain is to connect your ammeter (in series, of course) between the negative battery terminal and the ground cable. Set the meter to read milliamps, if it shows more than 100 mA, you've got a leak. Start unhooking things one at a time until your reading drops to less than 100 mA. Work carefully, totally unhook the ground from the meter each time you go to unhook a connector, and watch what you do with unhooked hot wires. I'd say start with the key switch and light switch because they're easy, but make sure to check out the charging system. If the tractor has an old cab or any other add-on electrical parts (like a radio), start there.

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Price Co. Hunter

08-04-2005 17:27:03




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 Re: 706 gas schematic needed badly in reply to K.B.-826, 08-04-2005 16:10:42  
There are two other likely areas for battery drain:
1. cigarette lighter
2. There is a group of wires that are attached to the keyed switch. These wires make a sharp bend near the switch. The wires come in contact with the tractor framework right at that bend. Over time the insulation wears away and the wire will ground out at that point.



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