Lenovo THINKPAD L420 Hardware Maintenance Manual page 81

Table 20. Removal steps of palm rest assembly with cables
When installing: Make sure all the screws have been fastened to secure the palm rest.
Step Screw (quantity)
1
M2 × 8 mm, flat-head, nylon-coated (1)
2
M2 × 5 mm, flat-head, nylon-coated (6)
Color Torque
Black 0.181 Nm
(1.85 kgfcm)
Black 0.181 Nm
(1.85 kgfcm)
.
Chapter 8 Removing and replacing a FRU
75