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Repair Center  How to Replace the Motor Brushes on a Makita Finishing Sander

Why Read This Article?

Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)

Article Breakdown

Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)

Video

Tools & Materials

Fix Factor: Easy Duration: 15 minutes Frequency: As necessary Tools Required: Phillip's screwdriver, small screwdriver, long-nosed pliers

How to Replace the Motor Brushes on a Makita Finishing Sander

Finish Nailer Repair - Replacing the Driver Guide (Ridgid Part # 79004001022)
How to replace the motor brushes on a Makita finishing sander The Facts

If raised grains and elbow strains are sanding away your patience, it's time to face the fix. Whether you are a sanding professional or a seasonal sander, eReplacementParts.com provides the parts, procedures and facts you need to fearlessly fix what fails you.

Motor brushes allow electricity to flow to the motor's spinning armature. The brushes, which are made of carbon, will begin to wear down over time. When this happens, the motor no longer receives the electricity it needs to function smoothly. Symptoms of worn brushes include erratic or intermittent operation, decreased power, or a complete inability to activate the sander.

If the brushes on your finishing sander have become rough around the edges, this article will show you how to smoothly and expertly remove and install new ones.

Let's get started. The Fix   REMOVING THE MOTOR BRUSHES [top] 1. Remove the top cap.

a. Remove the retaining screws from the top cap.

Remove the screws

 

b. Remove the top cap from the sander.

Remove the top cap    2. Disconnect the wires.

a. Use long-nosed pliers to disconnect the wires from the terminals on the brush holders.

Remove the wires     3. Remove the brush holders.

a. Use long-nosed pliers to remove the brush holders from the plastic housing.

Remove the holders     4. Remove the motor brushes.

a. Use a small screwdriver to gently lift the retaining clip on the side of the motor brush.

Lift the clip

 

b. Slide the motor brush out of the brush holder.

Remove the brush

 

c. Repeat this step to remove the second motor brush.

Repeat this step

 

  INSTALLING THE NEW BRUSHES [top] 5. Install the motor brush.

a. Install the new motor brush into the holder.

Install the brush

 

b. Compress the motor brush into the holder until the clip engages.

Compress the clip

 

c. Repeat this step to install the second motor brush.

Repeat step

 

  REASSEMBLING THE UNIT [top] 6. Reinstall the brush holders (and brushes).

a. Align the brush holder with the opening in the plastic housing.

Align the brush

 

b. Press the motor brush (and holder) against the side of the plastic housing to compress the internal spring.

Compress the spring

 

c. Press the brush holder into the housing until the motor brush engages the armature.

Engage the armature

 

d. Repeat this step for the second brush holder.

Repeat step     7. Reinstall the wires.

a. Reconnect the wire leads to the terminals on the brush holders.

Connect the wires     8. Reinstall the top cap.

a. Install the top cap.

Install the top cap

 

b. Secure the top cap with the screws.

DESCRIPTION

  The Finish

Sanding can be a demanding task. But you don't have to rough-up your accountant to smooth-out your countertops. As you just learned, expanding sander functionality can be accomplished at a fraction of the cost of replacement. Good thing, too, because this repair just scratched the surface of what is possible when you follow our step-by-step repair guides. Find your next fix here.   [top]

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