Introduction

This guide will show you how to replace a motor tread.

Image 1/3: After loosening the screws, pull the serial port out. Image 2/3: After loosening the screws, pull the serial port out. Image 3/3: After loosening the screws, pull the serial port out.
  • Loosen the screws on the serial port by turning them counter clockwise by hand.

  • After loosening the screws, pull the serial port out.

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Image 1/3: Pull lid straight up to remove it from the scanner. Image 2/3: Pull lid straight up to remove it from the scanner. Image 3/3: Pull lid straight up to remove it from the scanner.
  • Lift lid to its vertical position.

  • Pull lid straight up to remove it from the scanner.

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Image 1/3: Image 2/3: Image 3/3:
  • Push the plastic opening tools into the crack between the top and the bottom of the chassis.

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Image 1/3: Go all the way along the chassis until you can lift the upper lid. Image 2/3: Go all the way along the chassis until you can lift the upper lid. Image 3/3: Go all the way along the chassis until you can lift the upper lid.
  • After placing one plastic opening tool into the slit, slide other plastic opening tools along the slit to detach the top from the bottom of the chassis.

  • Go all the way along the chassis until you can lift the upper lid.

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Image 1/3: Do this by grabbing the upper lid from the sides and rotating it ninety degrees so it is perpendicular to the bottom lid. Image 2/3: Grab the ribbon cable and gently pull it out of its slot with your fingers. Image 3/3: The upper lid can now safely be removed from the bottom lid.
  • Do not fully remove the lid until you remove the ribbon cable attached to the front of the upper lid.

  • Do this by grabbing the upper lid from the sides and rotating it ninety degrees so it is perpendicular to the bottom lid.

  • Grab the ribbon cable and gently pull it out of its slot with your fingers.

  • The upper lid can now safely be removed from the bottom lid.

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Image 1/2: Disconnect the white connector from the vertical standing circuit board. Image 2/2: Disconnect the white connector from the vertical standing circuit board.
  • Locate the stepper motor. With the front of the scanner facing you, the motor is located at the top left.

  • Disconnect the white connector from the vertical standing circuit board.

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Image 1/3: The stepper motor will become loose, but not completely free. Image 2/3: The stepper motor will become loose, but not completely free. Image 3/3: The stepper motor will become loose, but not completely free.
  • Using a #2 Philips Screwdriver, unscrew the two 7.7mm screws holding the stepper motor in place.

  • The stepper motor will become loose, but not completely free.

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Image 1/3: The stepper motor will become completely free. Image 2/3: The stepper motor will become completely free. Image 3/3: The stepper motor will become completely free.
  • Using tweezers gently remove the tread from the black gear on the stepper motor.

  • The stepper motor will become completely free.

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Image 1/2: Pull the spring towards you until it snaps off the side wall releasing the tension in the spring. Image 2/2: Using a #2 Philips Screwdriver, unscrew the single 5.88mm screw holding the mount of the plastic wheel in place.
  • Facing the front of the scanner you will see a white plastic wheel holding the other end of the tread.

  • Pull the spring towards you until it snaps off the side wall releasing the tension in the spring.

  • Using a #2 Philips Screwdriver, unscrew the single 5.88mm screw holding the mount of the plastic wheel in place.

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Image 1/1: Remove the shaft holding the plastic wheel and the mount together
  • The plastic wheel and it's mount will be loose.

  • Remove the shaft holding the plastic wheel and the mount together

  • The tread will be completely loose.

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Conclusion

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

Steven Shaginyan

Member since: 10/12/2011

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4 Guides authored

Team

Cal Poly, Team 6-9, Regan Fall 2011 Member of Cal Poly, Team 6-9, Regan Fall 2011

CPSU-REGAN-F11S6G9

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