Cover - (Aptiva 2172/74 - SL-A)

Cover

•  Disconnect the system unit power cord.
•  Release the lock that secures the cover at the back of the unit by pressing it toward the unlocked icon.
•  Slip your hand into the underside of the front panel and pull the release handle forward to  release the cover.
•  The cover slides along grooves that run on the sides of the unit.
   While still holding the handle, slide the cover forward to remove it completely.
•  Touch the bare metal frame of the system to dissipate any static electricity from your body
   (do not touch any of the components inside the frame until you have done this).
   Do not touch any component(s) with a voltage warning label.

•  Align the end corners of the cover with the front corners of the chassis.
   Ensure that the rails of the cover slide along the grooves on the sides of the chassis.
  
•  Slide back the cover until it fits into place. If the cover does not slide all the way to the rear,  hold the upper rear corners of the cover and slightly press it inward while pushing it toward the  rear end of the unit.
  
•  Slide the lock on the back of the unit to the "locked" icon to secure the cover to the chassis.