Difficulty

Easy

Steps

14

Time Required

                          10 - 20 minutes

Sections

1

  • Wheel Motor
  • 14 steps

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  • BackiRobot Mint 4200

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Introduction

What you need

Step 1

              Remove Battery
  • Remove the 4mm flathead screw on the battery cover.

Remove the 4mm flathead screw on the battery cover.

1024

Step 2

  • Pull out the battery and unplug the wires.
  • The nylon tip pliers can help you get a better grip on the battery plug.
  • Do not pull on the wires.

Pull out the battery and unplug the wires.

The nylon tip pliers can help you get a better grip on the battery plug.

Do not pull on the wires.

Step 3

              Wheel Motor Covers
  • Eight Phillips screws are located underneath the stickers.
  • Carefully cut around the 8 screw holes using an X-acto knife or razor blade to reveal the screws.
  • Remove the screws with a #2 Phillips screwdriver.

Eight Phillips screws are located underneath the stickers.

Carefully cut around the 8 screw holes using an X-acto knife or razor blade to reveal the screws.

Remove the screws with a #2 Phillips screwdriver.

Step 4

  • Separate wheel motor lid and set aside.

Separate wheel motor lid and set aside.

Step 5

              Cleaning Pad
  • Remove cleaning pad.
  • The cleaning pad is magnetic and will pull right off with a little force.

Remove cleaning pad.

The cleaning pad is magnetic and will pull right off with a little force.

Step 6

              Separating Top Case
  • Remove four #2 Phillips screws.

Remove four #2 Phillips screws.

Step 7

              Separate Case
  • With the device upside down, pull up to separate the bottom from the top cover.

With the device upside down, pull up to separate the bottom from the top cover.

Step 8

              Wheel Removal
  • Locate the three arrows on each wheel.
  • Insert metal spudger at arrow locations to pop off the wheel covers.

Locate the three arrows on each wheel.

Insert metal spudger at arrow locations to pop off the wheel covers.

Step 9

  • Use blunt nose pliers to remove circlip.
  • Once clip is removed you can pull the wheel off in an outward motion.
  • Wedge one side of the pliers between the clip opening and carefully pry upwards.

Use blunt nose pliers to remove circlip.

Once clip is removed you can pull the wheel off in an outward motion.

Wedge one side of the pliers between the clip opening and carefully pry upwards.

Step 10

              Motor Mount
  • Remove two #1 Phillips screws.
  • Pull off sprocket.

Remove two #1 Phillips screws.

Pull off sprocket.

Step 11

              Remove Counterweights
  • Remove four #2 Phillips and lift off retainer.
  • Pull out all weights and set aside
  • Keep weights stacked together so they do not get mixed up.

Remove four #2 Phillips and lift off retainer.

Pull out all weights and set aside

Keep weights stacked together so they do not get mixed up.

Step 12

              Unplug Motor
  • Unplug the motor.
  • Do not pull on the plug as this can cause damage.

Unplug the motor.

Do not pull on the plug as this can cause damage.

Step 13

  • Using the blunt nose pliers, peel up the adhesive and feed the wires with adhesive through the opening.

Using the blunt nose pliers, peel up the adhesive and feed the wires with adhesive through the opening.

Step 14

              Pull the Motor Out
  • Flip the unit over and pull the motor out.

Flip the unit over and pull the motor out.

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

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Author

                                      with 2 other contributors 


                    Blake Klein

Member since: 01/29/2017

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Evan Noronha - Jul 2, 2018

Reply

Nice! Very helpful.

wayne peterson - Dec 15, 2019

Reply

Popping the wheel covers as shown breaks the small hooks that hold the wheel cover on. You need to rotate the cover clock wise to release them. There probably is a special tool that uses the small impressions in the cover.