Acer TravelMate B3, Lifecycle Extension Manual, Page: 7 / 31

Removing the Lower case
1. Place the laptop on flat while lower case should be upwards. Use screwdriver to remove 10
screw of lower case. The spec of
NO 1 to NO 2 is SCREW_M2.5*6.7 mm_0.8 mm_4
mm_BLACK, the spec of NO 3 to NO 13 is SCREW_M2*5 mm_0.8 mm_4 mm_BLACK.
Figure 3-3. Lower case
Table 3-2. Lower case Screw
Step Screw Quantity Screw Type Torque/kgfcm
Remove
Lower case
SCREW_M2.5*6.7 mm_0.8
mm_4 mm_BLACK
2 2.0+/-0.1kgf.cm
SCREW_M2*5 mm_0.8
mm_4 mm_BLACK
11
2.5+/-0.1kgf.cm