Error!UsetheHometabtoapply2tothetextthatyouwanttoappearhere.Error!Usethe
Hometabtoapply2tothetextthatyouwanttoappearhere. 4ReplacementProcedures
SatelliteL550MaintenanceManual 4-7
ToolsandEquipment
Foryoursafetyandthatofotherpeopleintheworkingenvironment,itisstronglyrecommended
thatyouuseelectrostaticdischarge(ESD)equipment.Theproperuseofthisequipmentwill
ensuresuccessfulrepairworkandreducethecostsforrepairingdamagedcomponents.The
equipmentandtoolsrequiredfordisassemblyandreassemblyare:
One2mmPhillipsscrewdriver
One4mmflat-bladescrewdriver
Torxscrewdriver
Tweezers(forpullingoutscrews)
ESDmats(forthefloorandworkdesks)
AnESDwriststraporheelgrounder
Anti-staticcarpetsorflooring
Airionizers(forhighlyelectrostaticsensitiveareas)
Aplasticcard(increditcardsize)
ScrewTighteningTorque
Tosecurescrews,followthetorquevalueslistedbelow.Overtighteningcandamagecomponents
andscrews.Undertighteningcanloosenthescreworcausescrewstocomeoff,whichmayresult
inshortcircuitsorotherdamage.
M2(2mm) 0.22Nm(2.2kgfcm)
M2.5(2.5mm) 0.36Nm(3.5kgfcm)
M3(3mm) 0.51Nm(5.0kgfcm)
M2.5x4PSPTITEscrews 0.204Nm(2.0kgfcm)
M2.5x6GIZATITEscrews 0.36Nm(3.5kgfcm)