Dell Inspiron 5491 2n1 Service Manual page 11

4. Align the tabs on the base cover with the slots on the palm-rest and keyboard assembly and snap the base cover into place.
5. Tighten the three captive screws that secure the base cover to the palm-rest and keyboard assembly.
6. Replace the six screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly.
Removing and installing components 11