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I
I
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DISK PACK and
plastic canister
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~~
I
A
yam arm block in this position
disables spindle lock and closes
sector switch.
B
<l:am arm block in this position
enables spindle lock and places
&ector switch under control of
sensor posi ti oner.
Lock -
-
Unlock
Spindle drawer latch
Figure 23.
Disk Pack load/llnload Mechanism
I
, 5.
6.
7.
Twist the canister handle clockwise until the pack
rotates, indicating that the clutch is slipping.
Carefully lift the canister clear of the disk pack and
reassemble with the bottom cover, so that the interior
will remain dust free.
Note: If a maintenance situation requires the spindle
drawer to be open (in either direction) while the
spindle rotates, disable the spindle lock by
positioning the cam arm block as shown in "A"
of Figure 23.
Close the spindle drawer.
DISK PACK REMOVAL
(See Figura
22)
l.
Press Operator Panel START switch if indicator is
lighted. The indicator will be turned off.
Caution:
A spindle lock mechanism is actuated when
the spindle drawer is opened. A loud rat-
cheting noise occurs when the drawer of a
spinning disk pack is opened. While this
action is not recommended, it wi II not dam-
age the unit.
2.
Check that the Operator Panel SPIN indicator is not
lighted.
3.
Release the front lat,ch on the desired spindle drawer
and pu II the drawer put to the stop.
4.
Place the canister coreful ly over the mounted disk pack
so that the post protruding from the center of the disk
pack is received inti:> the canister handle.
5.
Twist the canister handle counterclockwise until
it
clicks two or three times, securing the cover to the
disk pack, and freeing it from the spindle.
6.
Carefully lift the cc;mister and the disk pack clear of
the spindle.
'
7.
Instal I protecl"ive cover on spindle and close the
spindle drawer.
8.
Place the bottom dust cover in position on the disk
pack and tighten it!.
DISK DRIVE/PAC:K INSPECTION FOR DAMAGE
'
!
When a disk pack is received, it should be carefuly exam-
inged for possible damage. A distorted disk pack can cause
head to disk interference that can result in a "crash". Since
a number of packs are used on more than one drive unit, a
Operating Instructions
35
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