Quantum Instruments DLT 7000 - Manual (Page 297)

Appendix D: The Tape Cartridge
Quantum DLT 7000 Tape Drive D-5
5. Look at the bottom of the tape cartridge, holding it as shown in Figure D-2.
Figure D-2 Location of Reel Lock Opening and Spring-Loaded Hub on Bottom of
DLTtape Cartridge
Check the opening indicated in Figure D-2 and ensure that the small plastic tab is
partially visible. This is the second reel lock. The reel locks can break if the
cartridge is dropped. This may be the cause of any rattling sound you hear when
you gently shake the tape cartridge.
If this reel lock tab is not visible do not use
the cartridge.
Also located on the bottom of the tape cartridge is the spring-loaded hub. Verify
that the hub is centered within the circular opening in the tape cartridge. Gently
press the hub and make sure that it springs back into place. Make sure that it
ends up centered within its circular opening.
Reel Lock Opening
Spring-Loaded Hub