Lenovo ThinkPad T410 Hardware Maintenance Manual - Page 67

FRU replacement notices, Screw notices

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Chapter 7. FRU replacement notices External CRU statement to customers: Some problems with your product can be resolved with a replacement part you can install yourself, called a "Customer Replaceable Unit" or "CRU." Some CRUs are designated as Self-service CRUs and others are designated as Optional-service CRUs. Installation of Self-service CRUs is your responsibility; you may request that Lenovo installs an Optional-service CRU according to the warranty service for your product. Where you are installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement instructions are shipped with your product and are available from Lenovo at any time upon request. You may find a list of CRUs in the publications that ship with your product or at http://www.lenovo.com/support. You may be required to return the defective part that is replaced by the CRU. When return is required: (1) return instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you may be charged for the replacement CRU if Lenovo does not receive the defective part within thirty (30) days of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details. This chapter presents notices related to removing and replacing parts. Read this chapter carefully before replacing any FRU. Screw notices Loose screws can cause a reliability problem. In the ThinkPad notebook 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. Do the following when you service this machine: • Keep the screw kit in your tool bag. For the part number of the screw kit, see "Miscellaneous parts" on page 151. • It is recommended to use new screws. • It is recommended to use each screw only once. • Use a torque screwdriver if you have one. Tighten screws as follows: • Plastic to plastic Turn an additional 90 degrees after the screw head touches the surface of the plastic part: • Logic card to plastic Turn an additional 180 degrees after the screw head touches the surface of the logic card: © Copyright Lenovo 2010, 2012 61

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Chapter 7.
FRU replacement notices
External CRU statement to customers:
Some problems with your product can be resolved with a replacement part you can install yourself, called
a “Customer Replaceable Unit” or “CRU.” Some CRUs are designated as Self-service CRUs and others
are designated as Optional-service CRUs.
Installation of Self-service CRUs is your responsibility; you may
request that Lenovo installs an Optional-service CRU according to the warranty service for your product.
Where you are installing the CRU, Lenovo will ship the CRU to you. CRU information and replacement
instructions are shipped with your product and are available from Lenovo at any time upon request. You may
find a list of CRUs in the publications that ship with your product or at http://www.lenovo.com/support. You
may be required to return the defective part that is replaced by the CRU. When return is required: (1) return
instructions, a prepaid shipping label, and a container will be included with the replacement CRU; and (2) you
may be charged for the replacement CRU if Lenovo does not receive the defective part within thirty (30) days
of your receipt of the replacement CRU. See your Lenovo Limited Warranty documentation for full details.
This chapter presents notices related to removing and replacing parts. Read this chapter carefully before
replacing any FRU.
Screw notices
Loose screws can cause a reliability problem. In the ThinkPad notebook 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.
Do the following when you service this machine:
•
Keep the screw kit in your tool bag. For the part number of the screw kit, see “Miscellaneous parts” on
page 151.
•
It is recommended to use new screws.
•
It is recommended to use each screw only once.
•
Use a torque screwdriver if you have one.
Tighten screws as follows:
•
Plastic to plastic
Turn an additional
90 degrees
after the screw head touches the surface of the plastic part:
•
Logic card to plastic
Turn an additional
180 degrees
after the screw head touches the surface of the logic card:
© Copyright Lenovo 2010, 2012
61