[Farmall] Oliver Cletrac HG Question

[Mike Sloane]

Two points:

1. While your old tractor will work fine if the battery is installed 
backwards, you will have to polarize the generator to get it charging 
properly. At least that has been my experience. (The voltage regulator 
and starter are polarity insensitive, as are the lights. You can live 
with "wrong" ammeter indication, but it is a good idea to reverse the 
wires and keep everything "sane".)

2. While the tractor will run with no other changes than above, it will 
not run well until you reverse the coil connections. Automotive coils 
are "auto transformers" with both high and low voltage common on one 
side. It is my understanding that the running them reversed will degrade 
spark voltage significantly. Fortunately, it takes only a few seconds to 
reverse the wiring on a coil - make sure that the wire connected to the 
distributor goes to the terminal marked the same as your ground (if you 
battery is negative ground, connect that wire to the terminal marked 
with a "-" and the wire from the switch to the "+" terminal).

BIRDDOG wrote:
> In most cases, John, I do not think re-polarization would be necessary.  
> The only time I have had to do it is with a new installation.  I have to 
> be honest and state that when and why to polarize has always been a bit 
> of a mystery to me.   I have never had a full understanding of the subject.
> Charlie
> 
> John McDevitt wrote:
> 
>> Thanks Charlie.  Good to know that.  I believe it does have an ammeter.
>> If we did hook it up wrong, would we have to re-polarize then generator
>> after hooking it up correctly?
>>
>> Thanks,
>>
>> John

-- 
Mike Sloane
Allamuchy NJ
mikesloane at verizon.net
Images: <www.fotki.com/mikesloane>

If you torture data sufficiently, it will confess to almost anything. 
-Fred Menger, chemistry professor (1937- )


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