HP ProCurve 8100fl Series Installation And Getting Started Manual page 40

Installing the ProCurve Switch 8100fl
Installation Procedures
9. While a second person pushes the bottom of the chassis so that the
W A R N I N G
2-14
mounting brackets are flush with the rack, use the appropriate
screwdriver to tighten the screws in the lowest holes of the mounting
brackets on the chassis to the rack.
Continue tightening the screws in the holes on the right and left sides of
the mounting brackets to fix it to the rack, starting with the bottommost
holes and moving upwards.
All mounting screws must be tightened securely before the chassis can be
loaded with additional hardware. If you accidentally leave the screws
loose, the chassis can slip and fall, possibly causing damage and injury.