Lenovo B490 Hardware Maintenance Manual - Page 48

Ensure torque screw drivers are calibrated correctly following country specifications.

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• Torque driver If you have a torque screwdriver, refer to the Torque column in the screw information table for each step. • Make sure that you use the correct screw. It is recommended to use new screws for replacements. If you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information table for each step. • Ensure torque screw drivers are calibrated correctly following country specifications. 42 Hardware Maintenance Manual

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Torque driver
If you have a torque screwdriver, refer to the Torque column in the screw information table for each step.
•
Make sure that you use the correct screw. It is recommended to use new screws for replacements. If
you have a torque screwdriver, tighten all screws firmly to the torque specified in the screw information
table for each step.
•
Ensure torque screw drivers are calibrated correctly following country specifications.
42
Hardware Maintenance Manual