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Discussion Forum

Mag grounding on unstyled WC

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Bruce from Boulder

02-14-2003 09:24:35

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I'm restoring a 36 WC (not running yet). I want to ground the magneto while I am working on it to prevent it from firing. I know that a styled WD has a connection on the side of the magneto for a "kill switch" to stop the motor by grounding the magneto. I can't find such a connection on my WC. Now I'm courious how the operator shuts down the motor on these unstyled WC's.

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02-14-2003 10:14:26

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 Re: Mag grounding on unstyled WC in reply to Bruce from Boulder, 02-14-2003 09:24:35  
The actual location of the kill switch depends on which model magneto is on the tractor. In 1936 it should have had either an RV-4 (wires out the top) or a model FM 4B (wires out the rear) Either of those magnetoes have a kill wire stud on the bottom of the case towards the rear. Originaly there was a metal srtip attached to the kill stud that could be pushed against the case to ground the mag. Quite a few tractors have had the later model FMJ or FMX magnetoes installed and the kill wire stud protudes from the right side of the housing and should also have a metal strip atached to kill it. Some of the FMJs that were originaly installed on styled WCs had the kill stud on the left side and there was a switch attached to the magneto that was operated by a pull rod from the seat. Fabricating a kill switch is pretty easy if yours is missing, or you can use a pocket knife to ground the stud to the case. Even with an original type kill switch the mag doesnt remain grounded unless you hold the switch in. Pull the wires off the plugs to keep it from starting while you working on it or attach a jumper from the stud to ground.

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