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For Technical Assistance Please Call Toll Free 1-877-4BROTHER Changing the color change potentiometer With the power to the machine turned off. Remove the old color change potentiometer by loosening the two outer setscrews of the color change collar. These are the ones closest to the potentiometer. Then slide the color change potentiometer out of the collar and the machine.
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Remove the mounting bracket from the old color change potentiometer with a wrench and install on the new potentiometer in the same orientation as the old one. Mounting Bracket Plug the new color change potentiometer connector into the thread tension bracket connector but do not install the potentiometer onto the machine.
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Now turn the shaft counterclockwise very slowly until just 2 is flashing. Install the new color change potentiometer onto the machine by inserting the shaft in to the color change collar and also that the mounting bracket goes into the slot. Make sure not to turn the shaft while inserting it into the machine. Then tighten the two outer setscrews to hold it into position.