Lenovo ThinkPad T520 Hardware Maintenance Manual page 103

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)
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 Certificate of Authentication label (COA)
the old part 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.
2
Information label
3
IMEI barcode label
Color
Silver
Black
Black
5
4
1 is attached to a part that is replaced, return
.
Chapter 9 Removing and replacing a FRU
Torque
0.181 Nm
(1.85 kgfcm)
0.181 Nm
(1.85 kgfcm)
0.181 Nm
(1.85 kgfcm)
97