MODULE SHUTOFF DIAPHRAGM REPLACEMENT
When removing and installing the
shut-off diaphragm compressor, make
sure that it is not cross-threaded in
the filter bowl port, or component
damage may occur.
The procedure to replace all module
shutoff diaphragms is the same.
Power control module is shown.
If the diaphragm compressor and
handle (APP E-320) are not available,
a 3/16 by 1/2 inch drive deep well
socket may be used to compress
the diaphragm is under strong
spring pressure and parts are easily
REMOVE SHUTOFF DIAPHRAGM
Install the diaphragm compressor (1) as follows:
Carefully screw the diaphragm compressor
(1) into the filter bowl port (2). Hand tighten
as far as possible.
Insert the pins of the removable handle (3)
into the holes in the compressor (1).
Using handle (3), screw compressor (1) into
port (2) until it is fully seated.
Remove handle (3).
Using a 5/32 inch Allen wrench through hole in
compressor, remove diaphragm retainer screw
(4) and bushing (5) from port (2).
Diaphragm is under strong spring
pressure. Exercise care when
Carefully unscrew compressor (1) from port (2).
Use handle (3).
Remove shutoff diaphragm (6) and spring (7)
from port (2).
Remove two packings (8 and 9) from inner bore
of diaphragm (6). See view A.
Remove packing (10) and retainer (11) from
inner groove in port (2). See view A.