9-50 TS3400 Tape Library Maintenance Information
1. From the left side of the drive, pull out tape from the take-up reel.
Note: If there is more than approximately 0.6 m (2 ft) of tape on the take-up reel,
go to “Tape Broken in Midtape” on page 9-51.
2. If there is less than approximately 0.6 m (2 ft) of tape on take-up reel, cut off the
excess tape as close to the leader pin, as possible.
3. See Figure 9-54. Locate the threader motor worm gear on the rear end of the
drive. Use your finger to rotate the threader motor worm gear and slowly drive
the threader mechanism gear .
4. Rotating the threader motor worm gear clockwise draws the leader block
assembly (LBA) into the cartridge. As the tape LBA is secured in the cartridge,
you should hear the LBA retention spring clips click into place. If you do not hear
the click, continue rolling until the threader motor worm gear stops. The LBA
is in the correct position.
5. Note the following:
• Loader mechanism gear nearest the front of the drive that actuates the
cartridge loader mechanism
• Position of the rotator stub
• Front loader motor worm gear . Rotating this gear allows the loader
mechanism gear to turn.
6. Using a small screwdriver on the end of the shaft, or using your finger, rotate the
loader motor worm gear to turn the loader mechanism gear
counterclockwise. Continue turning until the rotator stub passes under the
aluminum bracket . This releases the LBA leader pin.
7. Rotate the threader motor worm gear to turn the threader mechanism gear
counterclockwise. This moves the LBA out of the cartridge and past the read/
write head. Stop this rotation when the LBA ( in Figure 9-55) is near the tape
guide roller nearest the drive rear end.
Table 9-4. Gear train identification
Component Gear or Part Name
Loader motor worm gear
Cartridge loader tray guide bearing
Rotator stub
Threader motor worm gear
Threader intermediate gear
Threader mechanism gear
Aluminum bracket
Loader mechanism gear
1
2
3
4
5
6
7
8
4
6
4
1
8
3
1
8
1 8
3
7
4 6
1
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