Lenovo ideapad 520H-15IKB Maintenance Manual page 49

Figure 7. Removal steps of fan and heat sink assembly (continued)
Unplug the fan connector 3. Remove the screw 4. Release the cable from the
cable guides.
Step Screw (quantity)
M2 × 6 mm, Phillips-head, nylok-coated (1)
4
THERMAL+C
Lift the fan in the direction shown by arrow 5.
When installing: Make sure that the connector is attached firmly.
Lenovo ideapad 520
Color Torque
Black 1.85±0.15 kgf*cm
45