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Installation
d.
Remove
the
accessories box.
e.
Lift
the protective cover
from
the
disc
drive.
f.
Using
a
9/
16
-inch wrench,
remove
the
two
bolts
that
hold
the
pallet
end
to
the
main
pallet base.
g.
Pull
the
pallet
end
from
the
main
pallet
base.
h.
Lift the
other
end
of the
main
pallet
base
up
until
the
casters
on
the
disc
drive
rest
firmly
on
the floor
(see
figure
2-6).
i.
Cut
the polystrap
band
holding the
disc
drive
to
the
main
pallet
base
j.
Separate the
disc
drive
from
the
pallet
base.
k.
Cut
the
plastic
bag and
peel
it
off the
disc
drive.
Do
not
pull
the
bag
off
the
disc drive.
l.
Visually inspect the drive for
damage.
m.
If
a
visual
examination
reveals
any
damage
to
the
disc drive,
follow the claims
procedure
described
in
paragraph
2-4.
NOTE
Retain
the shipping containers
and
packing
materials
for
future
use.
2-29.
PREPARATION PROCEDURES
WARNING
To
avoid
dangerous
electrical
shock,
do
not
perform any
installation/
removal/replacement
operation
until
the ac
mains power
is
removed from
the
disc drive.
Installation
of the
subsystem
requires that the
disc
drive
power
cord
be
disconnected.
To
remove
the
power
cord,
proceed
as follows:
a.
Set
the
disc
drive
power
switch
on
the rear
panel
to
the 0
(off)
position.
b.
Set
the
power
switch
on
the front of the
HP
9
1
44A
to
the 0
(off)
position.
c.
Disconnect
the ac
power
cord
from
the
wall outlet
and from
the receptacle
on
the
rear of the
disc drive.
Installation
of the
subsystem
requires that the
HP-IB
cable(s)
be disconnected. Disconnect the
HP-IB
cable(s) as follows:
CAUTION
1
Do
not
connect
or
disconnect
the
HP-IB
cable(s)
from
the drive
while
the
system bus
is
in
an
active
state.
a.
Loosen
the
two
thumb
screws
which
hold
the
HP-IB
connector
in place.
b.
Disconnect
the
HP-IB
cable(s).
To
reconnect the
HP-IB
cable(s), first
ensure that
the
system bus
is
not
in
an
active
state,
then
reverse the procedure.
2-30.
PANEL
REMOVAL
AND REPLACEMENT
I
NOTE
Do
not
attempt
to
force
any
panel
away
from
the
subsystem.
Always
follow the
logical
sequence given
and
refer to figure
2-2
if
necessary.
2-31.
TOP COVER.
To remove
the top cover,
proceed
as follows:
a.
Unlock
the
rear
panel
with
the
key
supplied.
b.
While
holding the front
of the
top cover
down,
pull
up
on
its
rear edge,
as
shown
in
figure 2-2,
until
it
is
clear of
its
locating
studs.
c.
Lift
the
top cover
clear of
its
front edge
locating lugs
with
a
forward
movement
as
shown
in
figure 2-2.
2-12
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