Dell Precision M3800 (Late 2013) - Manual (Page 34)

4. Lift the palmrest assembly away from the display assembly.
CAUTION: Lift the palmrest assembly slowly to avoid damaging the display assembly.
5. Remove the palmrest assembly away from the display assembly.
Installing the Palmrest Assembly
1. Align the palmrest assembly on the display assembly.
2. Tighten the screws to secure the display hinges to the palmrest assembly.
3. Press down on the palmrest assembly to close the display.
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