Mooney FlowMax HP Regulator Instruction Manual | 13
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Nut on top of the Plug. Be sure to use a wrench on the
Stem flats to avoid twisting the Stem assembly during
removal of the Castle Nut.
1.8 Once the Castle Nut is loosened, the Plug and Castle
Nut can be moved up the Stem and the Set screw on the
Plug skirt will be exposed.
1.9 After loosening the Plug skirt Set screw, the Plug skirt
can be unscrewed from the Stem and the Seat Insert can
be replaced. Be sure to use wrench flats on Plug skirt
and Stem to avoid twisting the Stem assembly.
2.0 Partial assembly for Plug/Seat
Insert Inspection and Replacement
2.1 With the Plug and Castle Nut slid up on the Stem, place
the new Seat Insert onto the Plug skirt and screw the
Plug skirt onto the Stem until tight. Tighten as per Table 5
2.2 Tighten the Plug skirt set screw and slide the Plug
against the Seat Insert.
2.3 Slid the Castle Nut down the 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.
2.4 Tighten the Castle Nut to the torque as listed in Table 5
noting that the Castle Nut must line up with the hole in
the Stem for proper insertion of the Cotter Pin.
2.5 Insert Cotter Pin and bend the ends at least 90 degrees
to maintain proper locking action.
