4 Replacement Procedures

4.1 Overview

Screw Tightening Torque

Use the following torque when tightening screws.

CAUTION: Overtightening may damage screws or parts. Undertightening may allow screws to loosen (and possibly fall out) causing a short circuit or other damage.

NOTE: To tighten screws quickly and accurately, an electric screwdriver is recommended.

M2 (2mm)

0.167 Nm (1.7 kgfcm)

M2.5 (2.5mm)

0.294 Nm(3.0 kgfcm)

M3 (3mm)

0.549 Nm(5.6 kgfcm)

NOTE: To prevent damage to THIN HEAD screws, press along the axis of the screwdriver while turning the screw. This is because the contact area between the screw and driver is less than for a pan head screw (standard pan-shaped screw head).

Grip Color

Some screws have a colored grip area to help you determine the length of the screw.

Even numbered length screws: Brown

Odd numbered length screws: White

Special length screw: Blue

Grip area

“Special length screw” means screws whose length is indicated in an integral number to the first decimal places such as 2.5 mm, 2.8 mm and so on.

4-6

Satellite A10/TECRA A1/Satellite Pro A10 Maintenance Manual (960-445)

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Toshiba A10 manual Screw Tightening Torque, Grip Color