46B generator

[Jim Sanders]

I installed a new 6 volt battery in my B. Am I correct that I now need to re-polarize the generator? How is that done? The tractor does not want to start now. Thanks.

 

[John T]

You likely do not need to BUT it doesnt hurt to be safe. It was originally Pos ground, hope you re connected the new battery the same??

You can Polarize the genny (do it before starting) by using a little jumper wire to momentarily flash the BAT to the GEN/ARM terminal (should get a small spark) on the Cutout Relay or Voltage Regulator or else direct from BAT on the Cutout Relay or VR direct down to the gennys ARM post and get the spark.

John T

 

[rustysrestos]

Hi,just replacing the battery will not cause a no start situation.Most likely you have switched polarity when you reconnected the battery.It will still turn over but it isn't going to start.It's a simple check without taking anything apart.Remember it should be positive ground from the factory,but could have been swapped to negative ground. This will only make a difference as long as it is a distributor.

 

[John T]

You state: "It will still turn over but it isn't going to start" HOWEVER

Changing Polarity does NOT by itself, cause them to not start,,,,,,,,Does NOT make the starter turn backwards,,,,,,,, DOES cause them to NOT charge properly until the Genny is corretly polarized.

Even if a battery powered coil distributor ignition, the coil still fires if at reverse polarity, its just not as efficient as it will be if at the correct polarity......

We werent told if it fails to start because its not cranking over or not firing..

Hope this helps, best wishes

John T