Parr Instrument Series 4580 - Manual (Page 9)

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ASSEMBLE THE REACTOR
These reactors require at least 10 sq. ft. of
workspace in a well-ventilated area with
convenient access to an electric outlet,
running water, air and a drain. This unit needs
to be placed at least 10 inches away from
walls or flammable materials.
1.
Set the stand in the workspace.
2A.
Removable Vessels.
First pivot the overarm assembly to the
back of the support stand.
The pressure vessel has been shipped
as a complete assembly; it may be
easiest on the initial setup to place the
entire pressure vessel assembly into the
heater. Note: The complete assembly
does not need to be removed from the
heater during opening and closing
operations. It is designed so that the
cylinder can remain in the heater while
the head and split rings are attached or
removed.
Once the vessel assembly is in place
rotate the magnetic stirrer by hand to
make sure that it turns freely. Then
move the overarm back into position
above the vessel. The knob on the top
of the overarm will raise the upper shaft
with coupling for attachment to the
adapter on the top of the magnetic
stirrer. Push down and rotate the upper
shaft to bring these components into
alignment.
Occasionally the motor housing and
overarm assembly may vibrate out of the
standard position. If the upper shaft is
not in alignment with the center of the top
of the magnetic stirrer it will be necessary
to loosen the bolt which attaches the
motor housing to the support stand.
Remove the motor housing panel; there
is a single bolt that runs through the
lower housing support and the top shelf
of the floor stand. Once the bolt is
loosened, rotate the housing the required
amount, connect the upper shaft to the
magnetic stirrer and then tighten the
motor housing bolt.
2B. Fixed Head Reactor.
Bolt the stand to the floor
using the holes in the
base plate.
Loosen the panel screw of the vessel
retainer mounted on the midplate of the
support stand and open the retainer
bracket.
The pressure vessel has been shipped
as a complete assembly. It is necessary
to loosen the split ring bolts and remove
the split ring. Lift the head assembly out
of the cylinder and slide it into the
midplate of the stand. Close the retainer
bracket. The cylinder should be placed
in the cylinder lift bracket.
Rotate the magnetic stirrer by hand to
make sure that it turns freely.
Connect an air line to the 1/4” quick
disconnect fitting at the base of the
support stand. This pneumatic lift
package will raise or lower the cylinder.
It may also be used for the heater. The
lever on the side panel of the support
frame controls the lift motion.
The pneumatic package includes a
pressure regulator with gage located
inside of the support stand housing. It
can be accessed by removing the back
panel of the support stand. The
regulator has been preset to 50 psi. The
regulator can be adjusted by lifting up on
the cap. Rotate clockwise to increase
pressure, counter-clockwise to decrease
the amount of pressure sent to the
pneumatic lift cylinder. Press the cap
back down after setting the pressure.