148 General Service and Replacing FRUs
5 Secure the new front bezels to the access door.
Align the screwholes. Using the screwdriver, tighten all screws to the back of the access door.
6 Reinstall the operator panel. For details, see Removing and Replacing the Operator Panel (LCD)
on
page 162.
7 Close the access door.
8 Close the I/E station door.
9 Power on the library.
Removing and Replacing the Drive Power Fuse
Each module contains a single, replaceable, drive fuse located on the module’s Drive Sled Interconnect
Board (DSIB) for the overall drive power bus. This device protects the core library hardware components
from an electrical short or over-current problem in one or multiple tape drives. In the event a fuse fails
(blows), you need to replace it with a similar fuse type:
Control module fuse – 4A, 125 VDC, Type 3AB
Expansion module fuse – 7A, 125 VDC, Type 3AB
Required tools:
• Phillips #2 screwdriver
• 7/32" socket wrench or T10 Torx screwdriver for removing the fuse cover. (Which tool you need
depends on whether your fuse cover is secured with cap screws or Torx screws.)
• Fuse puller
To replace a drive fuse, follow these steps:
1 Review the RAS ticket details to determine which module contains the blown fuse.
2 Power off the library using the front power switch.
3 Turn off all power supplies in the module in which you need to replace the drive fuse, and disconnect
the power supply cord(s).
To have adequate access to the drive fuse, you must remove all power
supplies, and any cover plates from the affected module, as well as the fuse
cover. You may also have to pull off the side cover panel of the library to
access the fuse cover’s screws.
If the library is rackmounted, you must remove it from the rackmount to allow
sufficient clearance in replacing the drive fuse.
WITHOUT TAPE DRIVES, TAPE CARTRIDGES, OR POWER
SUPPLIES, A 5U LIBRARY CONTROL MODULE WEIGHS
APPROXIMATELY 60 LBS (27.2 KG). A 9U EXPANSION MODULE,
WITHOUT TAPE DRIVES, TAPE CARTRIDGES, OR POWER
SUPPLIES, EXCEEDS 65 LBS (29.5 KG).
TO AVOID SERIOUS INJURY, AT LEAST TWO PEOPLE ARE
REQUIRED TO SAFELY LIFT THE MODULES INTO POSITION.