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4. Remove the inner container.
5. Remove the packaged drives from their foam
cells.
6. Remove the drives from their anti-static/dust
protective bags and place the drives on a
grounded, foam-covered surface.
7. Notify the carrier immediately if any damage
is found.
CAUTION
Do not manually rotate the spindle or step-
per motors. Damage to the heads and
disks may result.
NOTE
The inside chamber of the drive is a sealed
compartment that must not be opened.
When returning a drive to the service center, ensure
that the heads are parked at cylinder 663. Head park-
ing is a function of the controller card. Use the prior
steps in reverse order. Be sure the drive is packed in
its anti-static/dust protective bag.
3.3
PREINSTALLATION
CHECKOUT
Before applying power to the drive, inspect for the
following:
3-2
1.
The circuit board is secure.
2. The connectors are firmly seated.
3. There is no debris or foreign material between
the frame and the casting, or any part of the
drive.
4. The head/disk housing can move freely on the
shock mounts of the frame.
5. The termination resistor pack and jumper block
are firmly seated and in the correct
configuration.
3.4
MOUNTING THE DRIVE
The drive can be mounted in any vertical or horizon-
tal plane. On the TM362, eight 6-32 tapped holes are
provided for mounting: two on each side and four on
the bottom of the frame (see Figure 2-1). On the
TM262, twenty-four 6-32 tapped holes are provided
for mounting: eight on each side and eight on the bot-
tom of the frame (see Figure 2-2). The drive is
manufactured with some critical internal alignments
that must be maintained. Hence, it is important the
mounting hardware does not introduce significant stress
on the drive.
Any mounting scheme in which the drive is part of the
structural integrity of the enclosure is not permitted.
Mounting schemes should allow for adjustable brackets
or incorporate resilient members to accommodate
tolerances.
A sway space is required between the head disk
assembly and other assemblies in the user system to
allow for movement of the housing on its shock mounts,
0.060 inches, minimum.
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