Step Screw (Quantity); M2 × 3 Mm, Wafer-Head, Nylon-Coated - Lenovo ThinkPad T520 Hardware Maintenance Manual

Table 33. Removal steps of base cover assembly
Step Screw (quantity)
1
M2 × 3 mm, wafer-head, nylon-coated (1)
2
M2 × 14 mm, wafer-head, nylon-coated (2)
3
M2 × 4 mm, wafer-head, nylon-coated (1)
Note: Applying labels to the base cover
The new base cover FRU is shipped with a kit containing labels of several kinds. When you replace the
base cover, you need to apply the following labels:
13
FCC label
14
Serial number label
15
Homologation label
Following labels need to be peeled off from the old base cover, and need to be put on the new base cover.
Note: If the Windows Authentication label (COA)
with the label to the customer, or provide the customer with a note of the label information, which includes
label location, label name, label part number, serial number, and product key.
Color
Silver
Black
Black
4
1 is attached to a part that is replaced, return the old part
Chapter 9
Torque
0.181 Nm
(1.85 kgfcm)
0.181 Nm
(1.85 kgfcm)
0.181 Nm
(1.85 kgfcm)
5
.
Removing and replacing a FRU
91