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Sorvall®
CentrifugesMaintenance
&
Repair5.
While
the
door
is
open,
remove
the
counterbalance
spring
adjuster,
then
set
itaside.
Close
the
door
gentty.6.
Back
off"
the
bolts
that
fasten
the
hinge,
then
latch
to
the
aluminum
mounting
barsfar
enough
to
allow
lifting
them
off
the
mounting
bars.7.
Remove
the
microswitch
and
solenoid
assemblies.b.
Adjustment
of
Mounting
Bars1.
Loosen
the
Inboard
bar
mounting
bolts
which
secure
the
aluminum
bars
to
theframe
members
(four
per
bar).
This
will
allow
the
bars
to
"spring
back"
to
a
rea¬sonably
Hat
condition.
Stand
back
and
"sight"
along
the
top
surface
of
each
bar
toverify
this
flatness.2.
Shim
at
each
bolt
location
as
necessary
to
maintain
bar
flatness
when
bar
bolts
aretightened
(sometimes
no
shims
are
required).
Torque
bolts
to
250
in-lbs.
If
a
torquewrench
is
not
available,
tighten
with
a breaker
handle
(3/8
in)
tightly
but
not
exces¬sively.c.
Hinge
Height
Adjustment1.
With
the
door
resting
on
the
evaporator
flange
by
its
own
weight
(check
that
latchfinger
is
not
caught
under
striker),
shim
the
door
hinge
base
as
follows:
find
thethickness
of
shim
or
combination
of
shims
that
can
be
slipped
under
the
ends
of
thehinge
without
lifting
the
door.
Do
this
for
each
side
of
the
hinge
individually.SHIM(3
PLACES)HINGE7/79RCS/W7Figure
6-58.Retighten
Door
ScrewsFigure
6-59.Shim
Orientation
of
the
Centrifuge
Door6-41
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