Acer Extensa 4120 Service Manual page 45

2. Remove the HDD assembly from the main unit.
3. Remove the HDD rubber enclosure from the assembly.
4. Remove the screws on the HDD module shielding.
Step
4 M3 x L4
Chapter 3
Type Quantity
2
Color Torque
Silver 3 kgf-cm +/-15%
35