Toshiba Satellite, M40 manual Tools and Equipment, Screw Tightening Torque

4.1 General 4 Replacement Procedures

Tools and Equipment

For the safety of you and other people in the working environment, it is strongly recommended to use electrostatic discharge (ESD) equipment. The proper use of this equipment will ensure successful repair work and reduce the costs for fixing damaged components. The equipment and tools required for disassembling and reassembling are:

?One 2 mm Phillips screwdriver

?One 4 mm flat-blade screwdriver

?Torx screwdriver

?Tweezers (for pulling out screws)

?ESD mats (for the floor and work desks)

?An ESD wrist strap or heel grounder

?Anti-static carpets or flooring

?Air ionizers (for highly electrostatic sensitive areas)

?A plastic card (in credit card size)

Screw Tightening Torque

To fasten screws, follow the torque values listed below. Over tightening can damage components and screws. Under tightening can loosen the fastening or make screws come off, which may result in short circuits or other damage.

? M2 (2 mm)	0.22 N?m (2.2 kgf?cm)
? M2.5 (2.5 mm)	0.36 N?m (3.5 kgf?cm)
? M3 (3 mm)	0.51 N?m (5.0 kgf?cm)
? M2.5x4 PSP TITE screws	0.204 N?m (2.0 kgf?cm)
? M2.5x6 GIZA TITE screws	0.36 N?m (3.5 kgf?cm)

Satellite M40/M45, TECRA A4, dynabook Vx/4 Maintenance Manual 4-7