Lenovo ThinkPad L421 Hardware Maintenance Manual - Page 103
For ThinkPad L520 models, For ThinkPad L420 and L421 models, When installing
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Step 1 Screw (quantity) M2 × 5 mm, flat-head, nylon-coated (2) For ThinkPad L520 models: 3 Color Black Torque 0.181 Nm (1.85 kgfcm) 2 2 For ThinkPad L420 and L421 models: 2 2 3 When installing: Make sure that the connectors are attached firmly to the system board. Chapter 8. Removing and replacing a FRU 97
Step
Screw (quantity)
Color
Torque
1
M2 × 5 mm, flat-head, nylon-coated (2)
Black
0.181 Nm
(1.85 kgfcm)
For ThinkPad L520 models:
2
2
3
For ThinkPad L420 and L421 models:
2
2
3
When installing:
Make sure that the connectors are attached firmly to the system board.
Chapter 8
.
Removing and replacing a FRU
97