Hitachi HUS151473VL3800 Specifications - Page 66
Drive mounting, Heads unload and actuator lock, Breather hole
UPC - 102645854861
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11.5 Drive mounting The drive will operate in all axes (six directions). Performance and error rate will stay within specification limits if the drive is operated in the other orientations from which it was formatted. The recommended mounting screw torque is 0.6 - 1.0 Nm (6 - 10 Kgf.cm). The recommended mounting screw depth is 4 mm maximum for bottom and 4.5 mm maximum for horizontal mounting. To avoid performance degradation, mount the drive in the system securely enough to prevent excessive motion or vibration of the drive at seek operation or spindle rotation, using appropriate screws or equivalent mounting hardware. Consult with the issuer of this specification for actual application if necessary. Drive level vibration tests and shock tests are to be conducted with the drive mounted to a table using the bottom four screws. 11.6 Heads unload and actuator lock Heads are moved out from the disks (unload) to protect the disk data during shipping, moving, or storage. At power down, the heads are automatically unloaded from over the disk area and the head actuator locking mechanism will secure the heads in the unload position. 11.7 Breather hole The breather hole must be kept clear and unobstructed at all times. Do not cover the breather hole. 11.7.0.1 Breather hole location Hitachi Ultrastar 15K147 SCSI Hard Disk Drive Specification 48