Introduction

This guide will involve the replacement of the motor that drives the X-Street SRT Viper. Reinstalling the motor will require you to re-solder the wires back on. This guide is slightly more difficult than the other guides. Follow and reach each step carefully.

Click here to purchase a replacement motor. Replacement Motor

Image 1/1: '''Underside side panel removal.''' Remove the two 3mm Phillips #2 screws from each underside panel. (4 screws total)
  • All of the following steps require using 3mm Phillips #1 head screwdriver .

  • Underside side panel removal. Remove the two 3mm Phillips #2 screws from each underside panel. (4 screws total)

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Image 1/1: To remove this underside panel, pull the plastic tabs from either side of the car and remove panel.
  • Underside front panel removal. Remove three 3mm Phillips #2 screws that connect the front panel with the main underside panel. Also remove the central front panel 6mm Phillips #2 head screw. (4 screws total)

  • To remove this underside panel, pull the plastic tabs from either side of the car and remove panel.

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Image 1/2: Remove the two 6mm Phillips #2 screws that connect the rear panel to the body of the car. Image 2/2: ''6 Screws Total''
  • Underside rear panel removal. Remove the two 6mm Phillips #2 screws and the two 3mm Phillips #2 screws that connect back panel to the main underside panel.

  • Remove the two 6mm Phillips #2 screws that connect the rear panel to the body of the car.

  • 6 Screws Total

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Image 1/3: ''Remove main underside panel carefully. There are fragile wires attached to this piece that could disconnect and break off if force is applied upon removal. '' Image 2/3: When removing car shell, place it on the left side of car. Image 3/3: When removing car shell, place it on the left side of car.
  • Underside main (center) panel removal. Remove the two front 6mm Phillips #2 screws and the two middle 6mm Phillips #2 screws.

  • Remove main underside panel carefully. There are fragile wires attached to this piece that could disconnect and break off if force is applied upon removal.

  • When removing car shell, place it on the left side of car.

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Image 1/1:
  • White connection removal. Begin by removing the two 6mm Phillips #2 screws that hold down the white connection from the underside panel to the rear wheel and motor assembly.

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Image 1/1: '''Plastic safety cover removal.''' Remove plastic safety cover by removing the one 6mm Phillips #2 screw.
  • Disconnect battery before continuing this step to avoid shock.

  • Plastic safety cover removal. Remove plastic safety cover by removing the one 6mm Phillips #2 screw.

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Image 1/1: After completing this step, you will be able to remove the wheel and motor assembly from the car. There are two springs located in the rear of the car that could come loose if you do this step too quickly.
  • Desolder or cut the two wires that are connected to the motor. Use a soldering iron or wire cutters—not scissors as shown in the photo.

  • After completing this step, you will be able to remove the wheel and motor assembly from the car. There are two springs located in the rear of the car that could come loose if you do this step too quickly.

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Image 1/2: ''This step can be tricky because the left side wheel is in the way.'' Image 2/2: Remove the wheel hub cap with a pry tool.
  • Remove the motor from the housing. Dislodge the left back wheel and motor assembly.

  • This step can be tricky because the left side wheel is in the way.

  • Remove the wheel hub cap with a pry tool.

  • Remove the wheel. Take out the one 3mm Phillips #2 screw that connects the wheel to the wheel and motor assembly

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Image 1/1:
  • Remove the five 6mm Phillips #2 head screws from the left side of the motor housing.

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Image 1/2: Keep in mind there are loose, fragile components inside. Image 2/2: Keep in mind there are loose, fragile components inside.
  • Pull apart the motor housing gently.

  • Keep in mind there are loose, fragile components inside.

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Image 1/2: Remove the two smaller gears by gently pulling them out of the motor housing. Image 2/2: Remove the two smaller gears by gently pulling them out of the motor housing.
  • Before you attempt this step, keep in mind that these gears have grease on them.

  • Remove the two smaller gears by gently pulling them out of the motor housing.

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Image 1/2: After removing the screws, remove motor by pulling it down and out of the housing. Image 2/2: After removing the screws, remove motor by pulling it down and out of the housing.
  • Remove the two 6mm Phillips #2 screws located on either side of the small brass gear.

  • After removing the screws, remove motor by pulling it down and out of the housing.

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Image 1/2: Using these  [https://www.ifixit.com/Guide/How+To+Solder+and+Desolder+Connections/750|desoldering] techniques, remove the solder. Image 2/2: Using these  [https://www.ifixit.com/Guide/How+To+Solder+and+Desolder+Connections/750|desoldering] techniques, remove the solder.
  • Detach the black wire that is attached to the outer shell of the motor itself. Use a soldering iron or wire cutters—not scissors as shown in photo.

  • Using these desoldering techniques, remove the solder.

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Image 1/1: Re-Solder the two wires back on to the motor when replaced. Refer to this [https://www.ifixit.com/Guide/How+To+Solder+and+Desolder+Connections/750|How To Solder] guide for more information.
  • Pull apart the motor housing with care and clip off the wires that are soldered on to the motor.

  • Re-Solder the two wires back on to the motor when replaced. Refer to this How To Solder guide for more information.

  • Be sure to keep the circuit board and gear in order to re-attach them to the new motor.

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Conclusion

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

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Cal Poly, Team 12-6, Lancaster Spring 2015 Member of Cal Poly, Team 12-6, Lancaster Spring 2015

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