Mooney FlowMax HP Regulator Instruction Manual | 17
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3.25 Apply Parker o-lube and install Plug assembly into Cage.
Plug will stick at transition, keep pushing.
3.26 Install Lower Diaphragm Housing.
3.27 Assembly is done in the reverse order. Lube all O-rings
with Parker O-lube prior to reassembly.
3.28 Install Seal Pack Housing by sliding Seal Pack assembly
onto Stem and then sliding into the Lower Diaphragm
Housing. Install Seal Pack Cover.
Note: The Stem has a taper which allows for easy
installation of the Stem Seals.
3.29 Torque the Seal Pack Cap Screws to specified levels
(see Table 5) and manually move the Stem through a few
cycles to assure proper alignment prior to attaching the
Diaphragm and Diaphragm Support Plates.
3.30 Install Lower Diaphragm Support plate, Diaphragm, and
Upper Support plate.
3.31 Slide the Castle Nut onto the Stem shaft and engage
threads. The Castle Nut can be tightened by hand but,
prior to wrench tightening, place a separate wrench on
the Stem wrench flats to prevent rotation while tightening
the Castle Nut.
3.32 Tighten the Upper Castle to the torque as listed in Table
5 noting that the Castle Nut must line up with the hole is
the Stem for proper insertion of the Cotter Pin.
3.33 Insert Cotter Pin and bend the ends to at least 90
degrees to maintain proper locking action.
3.34 Thread the Travel Indicator shoe onto the Stem and
tighten while holding the stem from turning using a
wrench across the provided flats.
3.35 Set and center the Spring on the Upper Diaphragm
Support plate prior to lowering the Upper Actuator
Housing onto the assembly.
3.36 Ensure that the Diaphragm bead is sitting in the groove
of the Lower Actuator Housing.
3.37 Lower and bolt the Upper Actuator Housing to the
recommended torque specification.
3.38 Reattach the Travel Indicator by pressing down on the
Indicator stem and turning in clockwise direction. Travel
Indicator should be locked to the Stem and should not be
loose to move up and down.
3.39 Reconnect the Sense and Loading tubing.
3.40 Pressure test for leaks prior to returning to service.
4.0 Seat Ring and Cage Inspection
and Replacement
4.1 Disconnect the Inlet, Sense, and Loading tubing to the
Actuator. The Series 22 Pilot block can remain attached
to the Adapter Housing and does not need to be removed
for this procedure.
4.2 With the exception of the four Cap Screws that are
recessed into the Upper Actuator Housing, loosen and
remove the remaining Cap Screws that hold the Actuator
Housing to the Adapter Housing as shown below.
4.3 Remove the Actuator assembly by lifting straight up. DO
NOT PRY.