Dell INSPIRON 531S Owner's Manual page 157

8 Hold the heat sink firmly in one hand and using moderate force, pull up
the fan cover to separate it from the heat sink.
1
2
3
NOTICE:
Do not touch the fan blades to avoid damage to the fan blades.
9 Pull outwards the two fan cover grips on one side and slightly lift the fan
from the fan cover.
10 Pull outwards the other two fan cover grips on the other side and lift the
fan to release the fan from the fan cover.
1 fan
3 fan cover
2 fan cover guide (2)
4 fan cover grips (4)
Removing and Installing Parts
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