Dell PowerVault ML6000 - Manual (Page 271)

Chapter 12 Installing, Removing, and Replacing
Adding 9U Library Expansion Modules to an Existing Library
Dell PowerVault ML6000 User’s Guide 271
4 Lift the new 9U Library Expansion Module and, from the front of the
library, place it in the desired location.
5 If there is already a module installed, secure the two modules
together by tightening the two thumbscrews at the base of the front of
the module and the two thumbscrews located at the base of the back
of the module. Then lower the module’s guide pin (located at the
base of the front of the module) by turning it and pushing it down.
6
Tighten all thumbscrews located at the base of the front and back of
the modules.
7
Fasten the module to the rack with rack ears.
8
Engage the Y-rails of the new module in your library configuration.
Ensure that the Y-rails are properly aligned and the thumbscrews are
tightened.