IBM T400F Computer Drive User Manual


 
6. Continue to rotate the allen wrench until you feel resistance. The tape has
been rewound as far as it can go without unthreading.
Note: The number of required rotations depends on where the beginning of
the tape is on the cartridges takeup reel. You may have to rotate the
allen wrench for a lengthy period.
7. With the allen wrench still inserted into the bottom access hole, insert a
small-blade screwdriver or potentiometer-setting tool into the access hole for
the loader motor gear 3.
8. While keeping torque on the supply reel motor screw and rotating the allen
wrench 1 clockwise, rotate the loader motor gear with the small-blade
screwdriver 3 counterclockwise (see arrow). As you rotate the screwdriver,
the allen wrench moves slightly.
9. With the small-blade screwdriver, continue to rotate the loader motor gear in
the unload direction (counterclockwise):
v If you feel no resistance to the allen wrench and the cartridge slowly moves
up and out of the tape load compartment to the fully ejected position, the
procedure was successful. Remove the small-blade screwdriver and go to
step 10.
v If you feel resistance to the allen wrench and the cartridge does not move,
the loader mechanism is jammed or the leader block is not at the home
position. Remove the small-blade screwdriver and go to Fixing an Internal
Jamon page 88.
10. Remove the tape cartridge.
11. To ensure that the drive operates properly, refer to page 36 and select
Function Code 1 - Run Tape Drive Diagnostics.
After you remove the stuck tape cartridge, copy the data on the tape to another
tape. Then, if appropriate, return the stuck tape cartridge in its original packaging or
in the packaging from its replacement to your reseller. If the leader pin detached
from the tape in the cartridge, go to Repositioning or Reattaching a Leader Pinon
page 55.
Chapter 7. Servicing 87