HP StorageWorks Disk System 2300 User's Guide (This manual also covers the HP Surestore Disk System 2300)

Installation 67
Installation
6. Tighten the center nuts to finger tightness.
Figure 37. Center Nut Tightening
7. Tighten all screws to their final tightness using a driver.
Tighten the screws that hold the rail to the columns first, before
tightening the center slide nuts to their final tightness.