Lenovo 1141BUU Hardware Maintenance Manual page 76

Step Screw (quantity)
3
M2 × 6 mm, wafer-head, nylon-coated (1)
When installing: Make sure that the connector is attached firmly to the system board.
In step 6 , push the top case assembly out from the frame by using a plastic pry tool as shown in the
following figure.
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Hardware Maintenance Manual
Color Torque
Black 0.181 Nm
(1.85 kgf-cm)