Du Pont SORVALL RC-5 Service Manual page 157

Son/all®
CentrifugesMaintenance
&
Repair9.
Press
in
safety
interlock
wire.
then
open
the
door.10.
Using
hex-head
wrench, loosen tension
on counter balance
spring by
looseningcounter
balance
spring
adjuster.Figure
6-23.Opening
Door,
Using
SafetyInterlock
WireFigure
6-24.Releasing
Tension on
CounterBalance
on
the
Door11.
Using retaining ring pliers, remove hinge
pin
retaining
ring.12.
Raise
door to
vertical
position,
pull out
hinge pin,
then remove
door.13.
Scratch
or
scribe a line
down each comer
of the
two aluminum plates onto
the
blackpointed
frame.
This will
align
the
aluminum plates to
the
frame during
reassembly.Figure
6-25.Removing
Hinge
Pin
RetainingRing
at
the
DoorFigure
6-26.Removing
Hinge
Pinat
the
Door6-19