Reversing Moroso Window Motors
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Reversing Moroso Window Motors




>  If these Moroso jobs are brush motors and are run off of D.C, as they are
>in this case, then the polarity can be reversed to make them run backwards.
>This is basically the function of the window motor switch and relay anyhow.

Pardon my ignorance about such matters.. I don't claim to be an automotive 
electrician by any stretch of the imagination. I recently replaced the 
window lift gears in my '72 Imp and noted, as in my '64 Merc and '76 
Eldorado that the window lift motors have two wires, one for up and one for 
down. The negative ground is accomplished by a ground strap at the base of 
the motor. When positive voltage is applied to one of the wires, the motor 
is activated. When positive voltage is applied to the other wire, the motor 
runs the opposite direction.

Isn't it a bad thing when polarity is reversed on a DC motor that's not 
designed for such a function?

DD <---Still trying to figure out something for my Merc!




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