9N Conversion 6V-12V

[jturn36178]

This message is a reply to an archived post by Nate Ela on February 17, 2010 at 13:08:32.
The original subject was "9N Conversion 6V12V".

Is the voltage drop installed on many of these tractors primary purpose to provide a "safety" to protect the original 6v gauges and ignition components? I have came across one that is not wired (in my estimation) to help prevent over voltage on these devices. Also, can it be used instead of the "ballast" resistor?
Am i correct that the voltage drops are just heavier resistors too.
Thanks
Jim

 

[Bruce (VA)]

See tip # 30.

The OEM ballast resistor is in the ignition circuit and only serves to reduce coil current after start up.

It's a lot cheaper & easier to replace the headlight bulbs than it is to install a resistor in the light circuit.

The amp gauge doesn't care if it's 6v or 12v. The oil gauge is mechanical.

Before you do anything, Google "wiring diagrams JMOR" and get the correct wiring diagram for your tractor. If you wire that alternator wrong, you will let the smoke out of it.
75 Tips

 

[jturn36178]

Thank you for your advice. Will do.
Sincerely
Jim

 

[Tim PloughNman Daley]

Yep, follow Bruce's advice and get JMOR's wiring diagrams as well as download of his 75 Tips. Otherwise you'll be going to Wally world this weekend for heir big sale...