Re: 6 volt / 12 volt wipers


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Posted by David Sherman on Friday, November 02, 2007 at 13:48:59 :

In Reply to: Re: 6 volt / 12 volt wipers posted by Dana in Lancaster on Friday, November 02, 2007 at 13:13:42 :

I ran a 6 volt wiper on my 12 volt sno-cat via a resistor and it was fine. I experimented with different value resistors until I got about 8 volts to the wiper motor, which was enough to make it run with some enthusiasm, but not enough to make it get hot. The resistor dissipates about 10 watts so it needs to be a wire-wound one. I mounted it against the back of the aluminum instrument panel to carry even more heat away. I later made a variable-speed control for it, but the resistor alone would certainly do the job.



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