64 Library Installation and CRU Replacement
Installing the New 9U Expansion Module
1 Prepare the rack to hold modules, if you plan to install your library in a rack. See Using the Rack-mount 
Kit to Install a Library in a Rack on page 108 for instructions on installing a rack-mount kit.
2 Remove and replace the cover plates, if appropriate.
• If you plan to stack the 5U Library Control Module at the top of the library, and if a 9U Expansion 
Module will be located below it, remove the 5U Library Control Module’s bottom cover plate and the 
9U Expansion Module top plate.
• If you plan to stack the 5U Library Control Module between 9U Expansion Modules, remove both 
the top and bottom plates of the 5U Library Control Module. Also remove the top plate of the 9U 
Expansion Module located below the 5U Library Control Module and the bottom plate of the 9U 
Expansion Module located above the 5U Library Control Module.
• If you plan to stack the 5U Library Control Module at the bottom of the library, and if a 9U Expansion 
Module will be located above it, remove the 5U Library Control Module’s top plate and the 9U 
Expansion Module’s bottom plate.
* Recommended location for adding an expansion module.
Before removing the 5U Library Control Module’s bottom cover plate, 
the robot assembly must be parked as described in Step 6
 on page 
59.
Table 5 Cover Plate Location after Adding a 9U Expansion Module
ML6010 ML6020 ML6030
ML6030 CM + 1 
9U Expansion 
Module
ML6030 CM + 2 
9U Expansion 
Modules
cover plate
cover plate NEW 9U 
Expansion 
Module*
cover plate 5U Library 
Control Module
5U Library 
Control Module
cover plate 5U Library 
Control Module
9U Expansion 
Module
9U Expansion 
Module
cover plate 5U Library 
Control Module
9U Expansion 
Module
9U Expansion 
Module
9U Expansion 
Module
5U Library 
Control Module
NEW 9U 
Expansion 
Module*
NEW 9U 
Expansion 
Module*
NEW 9U 
Expansion 
Module*
9U Expansion 
Module
cover plate cover plate cover plate cover plate cover plate