Lenovo TB-8504X Руководство по обслуживанию оборудования - Страница 25

Lenovo TB-8504F/Lenovo TB-8504X

This chapter presents the following product-specific service references and

product-specific parts information:

• "FRU replacement notices" on page 21

• "Removing and replacing an FRU" on page 23

• "Locations" on page 35

• "Parts list" on page 36

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

section carefully before replacing any FRU.

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

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

part:

Lenovo TB-8504F/Lenovo TB-8504X

more than 90°

(Cross-section)