Lenovo B475e Notebook - Manual (Page 70)

Lift the thermal fan assembly in the direction shown by the arrow 5 .
Attention: Be careful not to damage the connector.
5
Attention: Do not handle the thermal fan assembly roughly. Improper handling can cause distortion or
deformation and imperfect contact with components.
When installing: Before you attach the thermal fan assembly to the computer, apply thermal grease, at an
amount of 0.2 grams, on the part marked
a as shown in the above illustration. Either too much or too less
application of grease can cause a thermal problem due to imperfect contact with a component.
a
64 Hardware Maintenance Manual