JRC JMA-9922-6XA - 7.2 Maintenance on Each Unit

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7 ,2 MATNTENANcE
oN
EAcH
uNIT
Scanner
NKE-I
0791107
5N 1089/1 087'
A
WARNING
Turn
off the
main
power
source
before starting
maintenance.
Otherwise,
an electric shock or
injury may
result.
Set
the Safety
Switch for Stopping
the
Scanner
to cents
[OFF],
Otherwise,
an accidental
contact
with
the
rotating
scanner may
result
in
injury.
Othenrvise,
an
electric shock may
result.
After finishing
the
maintenance work, set
the safety
switch
for stopping
the
scanner
to
"oN".
Precautions on Mounting
the Cover
When
the cover
is
removed
for regular checkup and
replacement
of
parts
and
refitted
after such
work, the
procedures
of fastening bolts shall
be
taken
with the
following
precautions:
(a)
The
proper
fastening torque of
the
fitting bolts
(MB)
is 1176 to
1470 N'cm
(120
to'150
kqf.cm)
(which
makes the inside
watertight and
protects
the
packing
against
permanent
compressive strain).
The
packing
start
producing
from the cover at the
torque
of approximately 1470
N'cm
(150
kgf.cm) or
more.
Do not fasten
the bolts with a
torque exceeding the specified
value. Otherwise, the
screws
may be broken.
(b)
Use an
offset
wrench
of
11 mm
x
13 mm
or
a double-ended
wrench
of
13 mm
x
17
mm
(not
longer
than
200 mm).
(c)
Screw
all
the bolts by
hand first to
prevent
them
playing,
then fasten
them
evenly in
order
not
to cause one-sided
fastening.
(Fasten
the bolts
with 25% of the required
torque at the
first step.)
*:
Fasten the bolts in
the
diagonal
order.
7-2