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4.
If the cartridge
posse~;visual
inspection, it can be
loaded in the disk drive (see "Cartridge loading and
Unloading Procedures").
5.
listen as the cleaning brushes sweep the disk surfaces.
If a tingl ing or scratching sound can be lleard
I
it indi-
cates that a brush ann is contacting a disk surface.
Unload the cartridge immediately and notify the cus-
tomer service engineer or the installation supervisor.
6.
If the cartridge passes the brush test, listen for any
head-to-disk contact.
If any unusual sound is heard,
unload the cartridge immediately and notify the cus-
tomer service engineer or the installation supervisor.
7.
Begin disk operations if the cartridge passes inspection.
CLEANING PROCEDURES
The spindle bowl of a disk drive and the cartridge covers
must be checked periodically for contaminants and cleaned
with
91
percent pure isopropyl alcohol and a lint-free cloth
(or Kimwipes).
Use the following procedure to clean the
spindle bowl:
1.
Stop the disk drive (see "Disk Drive Stopping Procedure ").
2.
Unload the cartridge (see "Cartridge loading and Un-
loading Procedure ").
3.
Cleon the spindle bowl with the lint-free" cloth moist-
ened with alcohol, and wipe it to remove all dirt and
smudges.
4.
After cleaning the spindle bowl, use a pad of adhesive-
type tope to pick up any particles not removed with
the cloth.
5.
Ensure that all particles have been removed from the
spindle bowl by rewiping it with the moistened cloth.
Only customer service engineers or other qualified main-
tenance personnel may clean the disk recording surfaces.
These surfaces need be cleaned only when the disk is
34
Cartridge Procedures
suspected of being the source of errors. The procedure for
cleaning disk surfaces is contained in the maintenance
manual for the customer service engineer.
STORING CARTRIDGES
The following procedures apply to the storage of disk
cartridges:
1.
Store each cartridge locked in its bottom cover to form
a sea I ed storage conta i ner .
2.
Store cartridges on their sides or stocked.
A stack
should contain no more than five cartridges.
3.
Store cartridges in clean dust-free cabinets of metal
or other fire resistant material.
4.
Keep the storage area free of dust and contaminants.
The computer room is the best environment for car-
tridge storage.
5.
Do not store cartridges in direct sunlight or in areas
exposed to magnetic fields from transformers, high
current electric cables, or similar equipment.
For
high security storage, observe the same precautions
used for storing magnetic tapes and microfilm records.
6.
If
cartridges are exposed to temperatures of f ess than
600 F or more than 900 F recondition them to the normal
computer room environment for 2 hours before using.
7.
Nonoperating storage conditions
are
8
to
80
percent
humidity with no condensation over a temperature
range of. -400 F to + 1500 F.
USAGE LOG
A log must be maintained for each disk drive in order to
identify all cartridges that were used on that drive.
In
the event of a malfunctioning drive or a defective car-
tridge, it is important to know which cartridges have been
used on a particular drive since one defective drive or
cartridge can extend damage to other drives. A log entry
consists of at least three items of information: cartridge
identification and the date and time the cartridge was
loaded.
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