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IBM
3410/3411
Tape Drive
Source: G232-(J()()4
3410/3411 Operator's Guide
Operating Procedure after Failures-
1.
The tape unit fails to sense the BOT marker and continues to search forward
for it.
a.
Ensure that the BOT marker is properly positioned 14 to 18 feet from
the physical beginning of tape. (If not, replace the marker.)
b.
Re-try load procedure, ensuring that the BOT marker is to the left of
the left-hand idler before pressing the LOAD REWIND button.
2.
Tape fails to load properly in either column or both columns, or it dumps in
either column.
Open vacuum column door and check the door and column edges for
contaminants that may have prevented proper sealing. Re-try load procedure.
3.
Tape unit fails to sense the end·of·tape (EOT) marker and tape unwinds
completely off file reel.
Ensure that
the
EOT marker is properly positioned approximately 25
feet from
the
physical end of tape. (If not, replace the marker.) If the
marker is properly positioned, the failure could be a programming error
or a machine malfunction.
b.
Thread tape back across idlen and onto the file reel. Manually wind
10
to 15 turns counterclockwise on file reel and
remO\le
all slack. Press the
LOAD REWIND button. As soon
as
the tape is loaded and starts to
move, press the RESET button. Then press either the LOAD REWIND
or the UNLOAD REWIND button, depending on the action desired.
4.
Permanent write failures occur immediately beyond BOT.
a.
Check the read/write head for contamination. If any doubt exists, clean
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b.
If problem recurs, mount a different reel of tape and re-try job.
5.
Power
is
dropped while tape is loaded and not at BOT.
Manually rewind all slack between reels. Restore power and press the RESET
and LOAD REWIND buttons. Tape loads into columns and starts moving
forward. Again press the RESET button and then press either the LOAD
REWIND or
the
UNLOAD REWIND button, depending on what action is
desired.
Cleaning Procedures
Clean tape transport and capstan every eight hours. Use cleaning kit, part 352465. and
tape transport cleaner.
Note: Use IBM tape transport cleaner, part 453511, or competitive formulations of the
same
chemical composition. Performance results cannot be guaranteed when other
chemical formulations are used, because they have not been tested by IBM.
ami
,tho;r
use may impair performance or cause damage to the tape unit or tape.
CAUTION
1.
Avoid prolonged skin contact with tape cleaner.
2.
Never clean a tape unit with a metal object. Use only materials specified for
each operation.
3.
Never touch rubber capstan surface with bare fingers; moisture or oil impairs
tape-tCK:apstan friction.
4.
Remove
any
tape cleaner dropped in the tape path, on
the
tape guides, or
on the idlers during cleaning.
5.
Don't use water in the capstan area or the read/write
head
area.
6.
Never get fluids of any kind in or near the column sensors.
7.
Do not use the flat area of top cover or the sliding door ;urface as a work
area.
If faiJures continue after recommended action has been taken, notify the CEo
Page 5·34
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