DeWalt DCF887B Type 3 Spring Replacement

Introduction

If your DeWalt DCF887B Impact Driver has started to shake or malfunction at the job site or at home, it can be because of spring inside the tip of the driver has failed. Luckily, this is a simple fix, and the spring can be replaced with just a pick and this guide.

The spring is placed behind the metal ball spring and the sleeve. The spring provides the mechanisms for releasing and holding the drill bits. Without the spring, the impact driver will start to wobble and will make it difficult to screw in screws adequately.

Make sure that you have a clean surface to work on and not lose any of the small parts.

Remove the driver's battery before beginning.

What you need

Step 1 Spring

DeWalt DCF887B Type 3 Spring Replacement, Spring: step 1, image 1 of 1

Place the picker inside the first washer and lever it out of place.
Use a bit of strength to ensure that the collar doesn’t click back in the same place.

Edit

Step 2

Once you pop out the first washer with a slight gap in it, called a "hog ring," a plain washer will follow.

Edit

Step 3

Remove the collar by grabbing the outer rim and pulling it out gently with your fingers.
Once you remove the collar, place it on the side of the table with the shortest end pointing upwards.

Edit

Step 4

Remove the steel ball by popping it out with the picker, or ideally, grabbing it with a magnetic tool.
Use minimal force when popping the steel ball out to ensure that it doesn’t fly away.
Set the steel ball somewhere it won't roll away.

Edit

Step 5

Grab the broken spring and pull it out gently.
You might have to wiggle the spring back-and-forth during removal.

Edit

Step 6

Replace the steel ball.
Align the crook in the spring with the steel ball's hole in the spindle to install the new spring.
Compress the spring right back through the middle of the steel ball frame.
Make sure the steel ball is tensioned by the spring.

Edit

Step 7

Attach the collar over the spring.
Apply light pressure on the spring with your left hand to pop the collar back on top.

Edit

Step 8

With the collar facing up, add the plain washer back into the center of the collar, then the hog ring.
Press down on the hog ring along with the collar until you hear it "click" into place.

Edit