Milwaukee Impact Wrench 9070 20 Motor Brushes Replacement Repair Guide

Difficulty

Easy

Steps

Time Required

                          15 minutes

Sections

Motor Brushes
4 steps

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BackMilwaukee Impact Wrench 9070-20
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Introduction

If the motor brushes are dirty or are in need of replacement, use this guide to replace the motor brush in your device.

What you need

Step 1

              Motor Brushes

Ensure that the device is unplugged from any power source to avoid electrical shock.
Flip the device and remove (6) 5 x 18mm screws with a T-20 screwdriver.
Remove (4) 5 x 14mm screws. with T-20 screwdriver.

Ensure that the device is unplugged from any power source to avoid electrical shock.

Flip the device and remove (6) 5 x 18mm screws with a T-20 screwdriver.

Remove (4) 5 x 14mm screws. with T-20 screwdriver.

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Step 2

Hold the device so the gray gearbox assembly faces directly towards you.
Remove the four screws with a T-20 screwdriver.
After removing all screws, use a small plastic opening tool to slide the gearbox assembly forward.

Hold the device so the gray gearbox assembly faces directly towards you.

Remove the four screws with a T-20 screwdriver.

After removing all screws, use a small plastic opening tool to slide the gearbox assembly forward.

Step 3

Gently remove the upper clam shell.
Slide the motor and gearbox assembly out the front of the device and set it aside.
Abrupt pulling may damage the motor brushes. Please remove it with caution.
The brushes may need to be compressed in order for the motor to be removed.

Gently remove the upper clam shell.

Slide the motor and gearbox assembly out the front of the device and set it aside.

Abrupt pulling may damage the motor brushes. Please remove it with caution.

The brushes may need to be compressed in order for the motor to be removed.

Step 4

Remove the brushes from the mount by pulling the brush body directly upward.
Disconnect the blue wire from the lower brush.
Disconnect the white wire from the upper brush.
Reconnect the wires to the new brush and replace them back into the mount.
The brushes may need to be compressed in order to slide the motor back into position.

Remove the brushes from the mount by pulling the brush body directly upward.

Disconnect the blue wire from the lower brush.

Disconnect the white wire from the upper brush.

Reconnect the wires to the new brush and replace them back into the mount.

The brushes may need to be compressed in order to slide the motor back into position.

To reassemble your device, follow these instructions in reverse order.

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Author

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                    Yuna Choi

Member since: 09/18/2019

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Team

                       Embry-Riddle Aeronautical University, Team S13-G7, Lamothe Fall 2019                        

                                                  Member of Embry-Riddle Aeronautical University, Team S13-G7, Lamothe Fall 2019 



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Introduction

What you need

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