How to Replace the Brush Spring in a Milwaukee Cordless Drill

If broken drills and service bills are boring holes in your budget; it's time to face the fix. Whether you are a master craftsman or an occasional drill-seeker, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.

Brush springs apply pressure to the motor’s brushes. Occasionally, these springs may break (or become lost during other repair procedures). Replacing a brush spring is very easy to do and this article will guide you through the simple steps required.

Let's get started.   REMOVING THE BRUSH SPRING [top] 1. Remove the battery from the drill.

    2. Remove the end cap.

Remove the end cap retaining screws.

Remove the end cap.

    3. Remove the brush spring.

SPECIFIX: There are two different types of springs used on this specific drill; two left-handed springs and two right-handed springs. Be sure to order the correct springs for your specific project, depending on which side of the brush card you are working.

Use a pick or small screwdriver to carefully lift the brush spring away from the brush.

Carefully release tension from the spring.

Remove the spring from the mounting post on the brush card.

  INSTALLING THE NEW BRUSH SPRING [top] 4. Install the new spring.

Slide the new spring onto the mounting post (the short arm of the spring should be facing the drill).

Use a pick or small screwdriver to align the lower arm of the spring against the plastic casting on the brush card.

Use a pick or small screwdriver to slide the long arm of the spring into the brush holder (against the back of the motor brush).

Press along the edges of the spring to ensure it is seated firmly against the brush card.

  REASSEMBLING THE UNIT [top] 5. Reinstall the end cap.

Install the end cap.

Secure the end cap with the four screws.

As you just learned, fixing things yourself means more drilling with less billing. Hopefully, this article has helped restore your ability to drill holes without replacing your whole drill. And that's just the tip of the bit. Our Follow-and-Fix field guides can help expand your skills far beyond drills; empowering you to face power tool problems as they arise and to fearlessly fix whatever fails you. Find your next fix here.   [top]