Dell 1815 Mono Laser Service Manual page 48

12. Pull up the CCD Shaft and take out the CCDM.
CCDM
13. Squeeze the spring to release the tension in the Belt
and lift from the pulleys, as shown below.
Belt
14. Remove the three screws securing the Scan Motor
Ass'y and remove it.
Scan Motor Ass'y
CCD Shaft
Spring
15. If necessary, remove the two screws securing the
Scan Motor and remove it, as shown below.
Scan Motor
Caution : Reassembling CCDM
1) When refitting the Scanner Belt and Belt Spring take
care to relocate the tension spring as close to the right
side of the CCDM as is possible, as shown below.
2) When refitting the Scan Upper Cover take care to
ensure that the Cover Open Switch is not trapped.
Precautions
Gear Bracket Ass'y
Service Manual
5-13