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Dewalt 12V XRP Battery Pack - Page 2 Questions & Answers
My Dewalt DWD460 slows down when I depress the trigger all the way. Why? A bad switch or Module??
If the speed control is the trigger, it is basically pushing the slider of a potentiometer up and down the track varying the control voltage to the speed control module.
Basically it is no different in principle to an old fashioned rotary or in-line volume control and just like a volume control the track can become dirty or wear out in places producing unpredictable and erratic operation.
Sometimes a thorough soaking with switch cleaner will restore the function.
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