Sorvall RT/T6000D - Page 84

SORVALL®
Centrifuges
Repair
&
Replacement
9.
Perform the
imbalance calibration
procedure
(paragraphs 7-2g, 8-2g,
or
9-2g).
5-36.
Belt
and
Pulley
Replacement Kit, Cat.
No.
07728
This kit
is
to
be
used when
replacing
the drive
pulleys
and
drive
belt
on
centrifuges with
a
serial
number
8301448
or
lower.
a.
Parts Supplied
Part
Number_____
Description Quantity
07831
Pulley
Height
Gauge
07650
Spring
Tension
Gauge
07727
Single
Groove
Drive
Pulley
68658
Drive
Belt
61682
Set Screw
65811 Loctite^ 222
Sealant
b.
Motor
Removal
CAUTION
Do
not turn
the
RT6000
centrifuge on
its
side.
Any
position other
than
upright
may
cause
compressor damage.
NOTE
All
numbers
in
parentheses refer
to
figure
5-19.
1.
Set the
POWER
switch to
ON,
and
open
the centrifuge lid.
2.
Set
the
POWER
switch
to
OFF,
and
unplug
the
centrifuge
power
cord.
3.
Remove the four
screws
that
secure
the
access
panel
to the
centrifuge
frame,
and
remove
panel.
NOTE
The
lower
left
screw
toward
the
rear
of the
centrifuge has
a grounding
lockwasher
that
must
be
replaced when reassembling.
4.
Release
the
drive belt
tension
spring
(12)
by
loosening
the
adjusting
nut
on
the
retaining hook,
and
remove
the
spring
from
the
motor
mounting plate.
5.
From
inside
the
rotor chamber,
lift the
plastic
gyro
cover
(2) then
remove
the black
rubber
gyro
seal (3) and
the
foam insulating ring
(4).
Rev.
7/93
.
5-41