IBM 570 하드웨어 매뉴얼

This section contains notices for removal and replacement.
Read this section carefully before replacing any FRU.

Loose screws can cause a reliability problem. The an IBM
ThinkPad computer address this problem 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 need additional force to tighten.

They should be used only once.

Do the following when you service this machine:

Keep the screw kit (P/N 05K4841) in your tool bag.

Always use new screws.

Use a torque screwdriver if you have one.

Tighten screws as follows:

Turn an additional 90 degrees after the screw head
touches the surface of the plastic part:

Turn an additional 180 degrees after the screw head
touches the surface of the logic card:

 

Torque driver
If you have a torque driver, refer to the “Torque”
column with each step.

Make sure you use the correct screw. If you have a
torque screwdriver, tighten all screws firmly to the

ThinkPad 570 and 570E Hardware Maintenance

Manual