Lenovo B580 Hardware Maintenance Manual page 62

Removal steps of keyboard bezel
1
Remove the screws and
Step Screw (quantity)
1
M2.5 × 8 mm, flat-head, nylon-coated (10)
2
M2 × 3 mm, flat-head, nylon-coated (3)
Remove the screws 3 .
Step Screw (quantity)
3
M2 × 5 mm, flat-head, nylon-coated (3)
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Hardware Maintenance Manual
2
that secure the keyboard bezel.
Torque
Color
Black 4.0 kgfcm
Black 1.85 kgfcm
Torque
Color
Black 1.85 kgfcm