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Farmall & IHC Tractors Discussion Board

Re: Maybe its not the Generator.


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Posted by Janicholson on January 09, 2011 at 14:38:36 from (199.17.6.10):

In Reply to: Maybe its not the Generator. posted by Fullers Farmalls on January 09, 2011 at 12:48:44:

In the previous post you indicate that you have a 4 terminal VR. If so it will not need the resistor at all, and any connection to it will be wrong. The L terminal of the 4 terminal regulator supplies the light switch only. YOurs should have only one resistor on it for dimming the lights. If it has two it might be a 4 position switch. Three position switches have only three 3 possible places to set the switch pointer. Full left is off, then dim lights, then bright lights. ODB.
If it is a 4 position sw. it will have L H D B
and no off.

Look at the previous post back several pages. It shows a 4 position switch. It is only used for a cutout only system with lights. It shows two resistors. one for lights, and a Mosdestly broken one for the Low charge position.

The light switch is electrically in two parts. One part has an input for voltage from the L terminal, and one connection for front lights, and one connection for rear lights. It also has a resistor to dim the lights.

The other section of the switch is not connected to any part of the lights. It is used to control charge rate manually. It has (Not now but originally) a wire going from it to the F terminal of the generator. the switch grounded the field to make it work. Direct ground to make full charge on H, and ground through a resistor for L. This wire provided regulation to the gen charge rate. The gen out put (ARM terminal) needed to go through the cutout to charge the battery, but you have a voltage regulator.

Nothing should be connected to the F terminal of the Gen except a single wire going to the VR F terminal.

Nothing should be connected to the charge resistor shown because yours has those resistors built into the VR. Jim


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