Lenovo IdeaTab S2110A Hardware Maintenance Manual - Page 30

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Lenovo IdeaTab S2110A Hardware Maintenance Manual

FRU replacement notices

This section presents notices related to removing and replacing parts. Read this

section carefully before replacing any FRU.

Screw notices

Loose screws can cause a reliability problem. In the Lenovo computer, this

problem is addressed with special nylon-coated screws that have the following

characteristics:

• They maintain tight connections.

• They do not easily come loose, even with shock or vibration.

• They are harder to tighten.

• Each one should be used only once.

Do the following when you service this machine:

• Keep the screw kit in your tool bag.

• Always use new screws.

• Use a torque screwdriver if you have one.

Tighten screws as follows:

• Plastic to plastic

• Logic card to plastic

• Torque driver

• Make sure that you use the correct screws. If you have a torque screwdriver,

• Ensure torque screwdrivers are calibrated correctly following country

Turn an additional 90° after the screw head touches the surface of the plastic

part:

Turn an additional 180° after the screw head touches the surface of the logic

card:

If you have a torque screwdriver , refer to the "Torque" column for each step.

tighten all screws firmly to the torque shown in the table. Never use a screw

that you removed. Use a new one. Make sure that all screws are

tightened firmly.

specifications.

more than 90°

(Cross-section)

more than 180°

(Cross-section)