2 ST11950 and ST12550 Installation Guide, Rev. D
•Ground yourself to the drive whenever the drive elec- tronics are or will be exposed. Connect yourself to ground with a wrist strap (Seagate part number 12263496). Connection may be made to any grounded metal assembly. As a general rule, remember that you and the drive electronics must all be grounded to avoid potentially damaging static discharges.
•Turn off the power before removing or installing the DC power cable.
•Do not remove any circuit boards from the drive.
•Never use an ohmmeter on any circuit boards.
Important safety information and precautions
Caution. Use
Use proper safety and repair techniques for safe, reliable operation of this unit. Service should be done only by qualified persons. We recommend the procedures in this manual as effective ways of servicing the unit. Some procedures require the use of special tools. For proper maintenance and safety, you must use these tools as recommended.
The procedures in this manual and labels on the unit contain warnings and cautions that must be carefully