T&T: 12 v. to 24 v. starting

[LRZeitlin at aol.com]

> We used to start tractors in sub zero weather in the Midwest by connecting 
> two 12 v. batteries in series using a parallel to series relay supplied by 
> the J. C. Whitney auto parts company (www.jcwhitney.com).
> 
> 

The relay is listed in the current J. C. Whitney catalog as a "Dual voltage 
starting switch", part number MX471030. It is described as a series/parallel 
switch which draws on two batteries until the engine starts, then automatically 
switches back to single battery voltage for continuing operation.

Larry Z




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