IOM-PGR-2
6
2, Re-install tubing and fittings that previously
connected the inlet filter to the stabilizer, the
cover dome to the metering valve and the
outlet of the metering valve to the outlet of
the body.
3. Re-connect the external sensing line to the
pilot valve sensing port.
for removal, handling, cleaning and disposal
of nonreusable parts, i.e. gaskets, etc.
3. Loosen fitting and remove tubing that con-
nect the inlet filter to the stabilizer, Remove
stabilizer from fittings that run between the
stabilizer and the pilot.
4. Secure stabilizer body (60.1) in a vise with
the spring chamber (60.2) oriented upwards
WARNING
SYSTEM UNDER PRESSURE. Prior to per form ing any
maintenance, isolate the reg u la tor from the system and
relieve all pressure. Failure to do so could result in
personal injury.
J. Changing the filter element:
1. See Section IV.
WARNING
SPRING UNDER COMPRESSION. Prior to re mov ing the
spring chamber, relieve spring com pres sion by back ing
out the adjusting screw. Fail ure to do so may result in
flying parts that could cause personal injury.
CAUTION
To prevent damage to body, use soft jaws when securing
the body in a vise. Position so that vise closes over the
inlet and the outlet connections.
DIAPHRAGM REPLACEMENT -
Inlet Filter
ELEMENT
(INSIDE)
BODY
COVER
2. Unscrew the filter cover from the body.
Remove old element and replace with new
element.
3. Screw cover on filter body and secure tight.
K. Disassembly of the Stabilizer:
1. Maintenance procedures hereinafter are
based upon re mov al of the stabilizer from
the pilot. Shut down system in accordance
Section VI.
2. Owner should refer to owner's procedures
1. Loosen adjusting screw nut (60.11) one
revolution CCW. Relax range spring (60.15)
forces by rotating adjusting screw (60.8)
CCW until removed from spring chamber
(60.2).
2. Loosen spring chamber (60.2) by placing
wrench on “flats” and rotating CCW making
sure
not
to use the flat where the vent hole
is located.
3. Remove spring chamber (60.2), spring
(60.15) and spring button (60.5).
4. Remove the diaphragm subassembly con-
sist ing of the pressure plate nut (60.10),
lock wash er (60.9), pres sure plate (60.3),
diaphragm (60.12), push er plate seal (60.13)
and pusher plate (60.4).
5. Loosen pusher plate nut (60.10) and separate
all parts (60.3, 60.4, 60.9, 60.12 & 60.13) of
the diaphragm subassembly.
6. Inspect pressure plate (60.3) to ensure no
de for ma tion due to over-pressurization. If
de formed, replace.
7. Clean
all
re
us able metal parts according to
owner's pro ce dures.
