Screw Tightening Torque - Toshiba TECRA S4 Maintenance Manual

Personal computer

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4 Replacement Procedures

Screw Tightening Torque

When you fasten screws, be sure to follow the torque list below.

CAUTION: Overtightening can damage components and screws; undertightening can

result in electrical shorts or other damage if screws or components come

NOTE: Toshiba recommends that you use an electric screw driver for quick and easy

NOTE: The computer contains several flat head screws. These screws have less contact

area with the screwdriver, so be careful to press firmly enough to prevent the

screwdriver from slipping out and damaging the screw head.

Color of Screw Shaft

To avoid mistakes on the screw length, screw shafts are colored as follows:

Even number length screw:

Odd number length screw:

Special length screw:

Screws whose lengths are indicated to one or more decimal

places such as 2.5 mm or 2.6 mm.

0.167 N·m (1.7 kgf·cm)

0.294 N·m (3.0 kgf·cm)

0.549 N·m (5.6 kgf·cm)

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TECRA S3 Maintenance Manual (960-532)

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