IBM TotalStorage 3580 L33, Setup, Operator, And Service Manual

Page: 115 / 143

b. Use a #1 flathead screwdriver to turn the threader worm gear (
9
in Figure 35 on page 96) clockwise.
This rotates the threader motor worm gear (
4
in Figure 35 on page
96) clockwise, drawing the tape leader block assembly (LBA) into the
cartridge.
__ Step 4. As the 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 (
4
in Figure 35
on page 96) stops. The LBA is in the correct position.
Note: Be sure to keep tension on the tape as the LBA is drawn into
the cartridge by using a hex wrench as shown in Figure 34 on
page 95.
__ Step 5.
Notice the following:
a. Loader mechanism gear (
8
in Figure 35 on page 96) nearest the
front of the drive that actuates the cartridge loader mechanism
b. Position of the rotator stub (
3
in Figure 35 on page 96).
c. Front loader motor worm gear (
1
in Figure 35 on page 96).
Rotating this gear allows the loader mechanism gear (
8
in
Figure 35 on page 96) to turn.
__ Step 6. Rotate the loader motor worm gear (
1
in Figure 35 on page 96) to
turn the loader mechanism gear (
8
in Figure 35 on page 96)
counterclockwise. Continue turning until the rotator stub (
3
in
Figure 35 on page 96) loses contact with the lever (
7
in Figure 35 on
page 96). This releases the LBA leader pin.
__ Step 7.
Rotate the threader motor worm gear (
4
in Figure 35 on page 96) to
turn the threader mechanism gear (
6
in Figure 35 on page 96)
counterclockwise. This moves the LBA out of the cartridge and past
the read/write head. Stop this rotation when the LBA is near the tape
guide roller nearest the rear of the drive (
1
in Figure 36).
__ Step 8. Continue rotating the loader motor worm gear (
1
in Figure 35 on
page 96) until the rotate stub (
3
in Figure 35 on page 96) is
positioned as shown. Notice that the rotator stub (
3
in Figure 35 on
page 96) is nearly aligned with the cartridge loader tray guide bearing
(
2
in Figure 35 on page 96).
__ Step 9.
Remove the cartridge from the cartridge loader tray.
a82ru010
1
Figure 36. Leader Block Assembly (LBA)
Appendix E. Information for Authorized Service Personnel
97