Honeywell MTU9104 Operation Manual page 27

dust, or magnetic fields affect them adversely.
Follow· these recommendations:
• When rewinding tape, be sure wind tension is
approximately 6 to 8 ounces (168 to 224 grams)
for lh-inch (1.27 cm) wide tapes. Loosely or
tightly wound tape causes wrinkles and creases
to appear' on the tape, which in time disrupt
contact between tape and tape drive head.
• Make sure that the tape leader is properly
wound when tape is returned to its cOI)tainer.
This avoids accidental crushing of the tape
leader edges and possible damage to the tape
itself. .
• A void dropping reels. If a tape is dropped, the
reel may become broken or dirty, resulting in
possible damage to the tape. Reel damage can
be determined by a visual inspection. Never
use a reel that may cause damage to the tape
or to the tape drive.
• Always store tapes in containers in a dust-free
cabinet. The containers should be placed on
edge so that the reel is in an upright position.
Do not stack tape reels one on top of the other
since the bottom containers could be damaged
by the weight of the stacked reels.
• , Never place reels of tape on top of a tape drive
as this exposes them to heat and dust from the
cooling system.
OPERATION
4-4
• Whenever possible, store tapes in the con-
trolled environment where they are to be
used, so the tapes are not subjected to ex-
cessive variations in temperature and
humidity. For short-term tape storage, the
surrounding atmosphere should be controlled
within the following limits:
Operating Relative Humidity: 40% to 60%
Operating TemperatUre: 60°F to 80°F (16°C to
27°C)' .
• For long-term storage, the reel of tape in its
container should be hermetically sealed in a
moisture-proof bag. Temperature should be
constant somewhere between 60°F and 80°F
(16° to 27°C). .
• When mounting or demounting tapes, handle
the tape reels by the hub and not by the
flanges. Squeezed or bent flanges result in
damaged tape edges and eventual loss of con-
tact with the magnetic head.
• A routine library inspection of tape reels
should be made. Check for protruding tape
edges. Exposed edges are vulnerable to
damage and cause loss of contact with the tape
drive head.
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