Lenovo 1953D7U Hardware Maintenance Manual page 92

Removing and replacing a FRU
Attention: Do not handle the fan roughly. Improper handling of the fan can cause
distortion or deformation and imperfect contact with components.
86
MT 1951, 1952, 1953, 1954, 1955, 1956, 2007, 2008, 2009, 2613, 2623, and 2637
Step Screw (quantity)
4
M2 × 9.5 mm, flat-head, nylon-coated (3)
6
4
4
4
5
Color Torque
Black 0.167 Nm
(1.7 kgfcm)