Lenovo E4430 - Manual (Page 47)

Chapter 6. Replacing devices 33
Replacing the fan assembly and heat sink assembly
Before you start, print these instructions.
To remove the thermal fan, do the following:
1. Turn off the computer; then disconnect the ac power adapter and all cables from the computer. Wait
three to five minutes to let the computer cool.
2. Close the computer display, and turn the computer over.
3. Remove the battery. See “Replacing the battery” on page 27.
4. Loosen the screws , and then remove the cover .
5. Detach the fan connector in the direction shown by arrow and loosen the seven screws to lift the
fan assembly.
a b
a
b
c d
c
d
d
d
d
d
d
d