37
Lib
er
at
ors
Repair Procedures
XII
RP30 – Flow Control Valve RR (Figure 26)
a. Remove shroud (See RP2).
b. Loosen compression fitting nut (Item 34) at connection of
breathing coil (Item 49) and FCV assembly. Disconnect FCV
assembly (Item 24) from coil.
c. Remove the FCV knob (Item 1) by grasping firmly and pull-
ing upwards.
d. Unscrew the two screws (Item 4) holding the lock plate (Item
3) and decal (Item 2) to the FCV (Item 24) and remove lock
plate and decal.
e. Unscrew SRV (Item 28) from FCV (Item 24).
f. Replace the FCV (Item 24), by reversing the above procedure.
RP31 – Dewar RR
WARNING:
Liberator must be empty and vented before
starting this procedure.
NOTE: Special care should be taken in aligning the FCV in
order to ensure that it lines up properly with the shroud.
WARNING:
Liberator must be empty and vented before starting
this procedure.
FIGURE 26:
Flow Control Valve
RP28 – Economizer Regulator RR (Figure 25)
a. Remove shroud (See RP2).
b. Loosen the three compression fitting nuts (Item 34) at the
economizer regulator (Item 35). Move coils (on the sides)
and economizer tube (Item D) away from the economizer
regulator (Item 35).
c. Follow RP29 to ensure proper settings on the replacement
regulator.
d. Reverse remainder of procedure to install new properly ad-
justed regulator.
RP29 – Economizer Regulator Test
a. Follow steps a and b of RP28 to remove economizer regulator.
b.
c.
Connect the oxygen pressure source to the inlet of the econo-
mizer regulator (Item 35) as shown in Figure 25. The inlet is
the side attached to the economizer tube (Item D, Figure 25).
Open the pressure source valve. Adjust the pressure source reg-
ulator to 1,6 bar (23 psig). The economizer regulator should
be set to open at 1,47 bar (21.3 psig) and close at 1,34 bar (19.5
psig).
d.
Slowly open valve (Item B) just enough to allow some gas to
escape.
e.
Pressure gauge (Item A) will indicate the setting of the
economizer regulator.
f.
Reverse steps a and b of RP28 to reinstall regulator.
WARNING:
Liberator must be empty and vented before starting
this procedure.
Note:
If the economizer is suspected to be malfunctioning, please
contact Technical Service.
WARNING:
Liberator must be empty and vented before starting
this procedure.
a.
Remove shroud (See RP2).
b.
Remove manifold assembly and coils (See RP9).
c.
Remove condensate bottle (Item 56), drain tube (Item 55)
and bracket (Item 54) following RP3.
Liberators Technical Service Manual • PN 13350704 Rev
K
