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DeWalt Miter Saw - How and When to Replace Brushes

Brushes are the most commonly replaced part on any DeWalt miter saw. The brush's role is to transfer power from the wiring onto the spinning motor by making contact with the commutator. Over time these brushes will wear down from friction and eventually wear out, causing power to be delivered to the motor intermittently. If your saw is experiencing intermittent or decreased power, chances are good your brushes are a part of the problem. Replacing brushes can usually be done in a few minutes with just a few simple tools. New brushes can restore lost power, revitalize your tool and save you hundreds of dollars on a replacement.

Step 1: Remove motor end cap.

Step 2: Here you can see the commutator. This is what the brushes make contact with as it spins. Inspect commutator for any signs of obvious damage or debris.

Step 3: Remove black plastic cap and pull brush out. Do this on both sides.

Step 4: Inspect brush for wear or damage. In this photo you can see the brush on the left is our new brush, and the one on the right has been worn down from use over time. Insert new brush and reassemble in reverse order.

For more detailed information, try watching this how-to video we made about replacing brushes in a DeWalt miter saw.

Parts will vary depending on your model/type #:

DW716 type 1, 2, 3 or 4 - Brush Part # 381028-08:

DW716 type 20 - Brush Part #614367-00

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