9
C-9000 Series
Disassembly
(cont.)
C) Magnetically Coupled Pumps
If applicable, remove the screws that
secure the barrier cap to the adapter
plate. Remove the barrier cap and its
O-Ring.
NOTE:
There could be process
fluid contained in the barrier cap. Loosen
setscrew at the bottom of the inner rotor
with appropriate Allen wrench.
NOTE:
Beware of strong magnetic forces.
Slide the inner rotor off the shaft.
Remove the square key from the
pump shaft. Remove the four socket
head screws/washers securing the
adapter plate to the pump body. Lift
the adapter plate off the pump body
and retrieve the O-Ring.
6.
Now set the pump in a vice that has
soft,
protective jaws made of brass,
aluminum, plastic or any material softer
that 316ss
. Orient the pump with the
drive shaft pointed down. Allow the
vice to grip the pump on the port sides
of the front plate.
7.
Loosen and remove the socket head
screws (19) [and 15 if applicable], from
the back of the rear plate (7).
8.
Remove the rear plate (7). Always use
the pry slots to prevent scratching the
precision lapped surfaces.
Use brass
or plastic tools to pry, if necessary.
Take
care not to press on the gears or the
edges of the gear pocket.
Caution:
Do not allow the gears to be lifted
out of the gear plate. They may drop,
causing damage to the gear teeth. See
Figure 5.
9.
Remove the drive shaft (2) and the
driving gear (5). The round key (4) will
fall from between the gear and the
drive shaft.
10.
Remove the retaining ring (16) from the
drive shaft with a brass or plastic tool.
11.
Remove the arbor (9) and the driven
gear (5) from the gear plate (3).
Note:
The driven and driving gears are
identical in most models.See
Figure 6.
12.
Remove both retaining rings (16) from
the arbor (9) using brass or plastic
tools. Remove the driven gear (5)
from the arbor (9). See
Figure 7.
13.
Remove the round key (4) from
the arbor (9).
14.
Remove the gear plate (3). Always
use the pry slots to prevent scratching
the plates!
Caution:
The slip-fit dowels (10) may
come off with the gear plate.
15.
Remove both slip-fit dowels (10) by
turning and pulling simultaneously.
It is acceptable to lightly press the
dowels out using an arbor press.
Use a brass or plastic pin to press
against the dowel.
16.
Remove the o-rings (34) from the front
and rear plates with a brass or plastic
tool.
17
. Do not attempt to remove the special
bearings located in the front and rear
plates. See
Figure 8.
Figure 5
Figure 6
Figure 7
Figure 8
