Lenovo
IdeaTab
A3000
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 IdeaPad 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:
•
Logic card to plastic
Turn an additional 180° after the screw head touches the surface of the logic card:
•
Torque driver
If you have a torque screwdriver , refer to the “Torque” column for each step.
•
Make sure that you use the correct screws. If you have a torque screwdriver,
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
.
• Ensure torque screwdrivers are calibrated correctly following country
specifications.
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Summary of Contents for IdeaTab A3000
Page 1: ...IdeaTab A3000 Hardware Maintenance Manual ...
Page 12: ... Lenovo IdeaTab A3000 Hardware Maintenance Manual 8 ...
Page 13: ...Safety information 9 ...
Page 14: ... Lenovo IdeaTab A3000 Hardware Maintenance Manual 10 ...
Page 15: ...Safety information 11 ...
Page 16: ... Lenovo IdeaTab A3000 Hardware Maintenance Manual 12 ...
Page 17: ...Safety information 13 ...