ThinkPad R500の取扱説明書・マニュアル [全226ページ 6.93MB]
43y6631_02.pdf
gizport - 2014-02-26
http://download.lenovo.com/.../43y6631_02.pdf - 6.93MB
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FRU replacement noticesThis chapter presents notices related to removing and replacing parts. Read thischapter carefully before replacing any FRU.Screw noticesLoose screws can cause a reliability problem. In the ThinkPad Notebook, thisproblem is addressed with special nylon-coated screws that have the followingcharacteristics:vThey maintain tight connections.vThey do not easily come loose, even with shock or vibration.vThey are harder to tighten.vEach one should be used only once.Do the following when you service this machine:vKeep the screw kit (for the P/N, see "Miscellaneous parts" on page 192) in yourtool bag.vAlways use new screws.vUse a torque screwdriver if you have one.Tighten screws as follows:vPlastic to plasticTurn an additional90 degreesafter the screw head touches the surface of theplastic part:90 degrees more(Cross-section)vLogic card to plasticTurn an additional180 degreesafter the screw head touches the surface of thelogic card:180 degrees more(Cross-section)vTorque driverIf you have a torque driver, refer to the "Torque" column for each step.vMake sure that you use the correct screw. If you have a torque screwdriver,tighten all screws firmly to the torque shown in the table. Never use a screwthat you removed. Use a new one. Make sure that all of the screws aretightened firmly.vEnsure torque screw drivers are calibrated correctly following countryspecifications.(C) Copyright Lenovo 2008, 2009 79
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