HP StoreEver MSL6480 Tape Library User and Service Guide

3. Verify that the module has been installed directly above or below its adjacent module and is
contained within the correct 6U volume.
Verify that the gap between modules is less than 4mm on both sides of the front of the modules.
The gap in the back must be less than 5mm. If the gap is larger or varies side to side:
• Confirm that both rack rails are properly located within the U volume.
• Confirm that both rack rails are properly seated in the rack vertical column.
• Verify that the top hanger for the rear of each rack rail is in the middle hole of the marked
U section.
• Check the rack vertical columns for bending.
• Confirm that the rack is an approved model. See “Location criteria” (page 19).
<4mm
4. Use your fingers or a #2 Phillips screwdriver to tighten the captive fasteners on each side of
the module until they are finger tight. Do not over tighten. After the fasteners are snug, loosen
them two full turns to allow adjustment room during the alignment process.
102 Upgrading and servicing the library