CAIRE Hi Flow Stroller, Техническое и сервисное руководство

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Hi Flow Stroller Technical Service Manual • PN 14314465 Rev F
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Repair Procedures
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RP17 – Pressure Retention Test (Figure 14)
a. Assemble oxygen regulator, pneumatic adapter and hose.
Connect assembly to oxygen gas source.
b. Assemble pressure gauge (Item J) and adapter assembly. Thread
hose barb onto pressure gauge (use Teflon® tape). Push tubing
onto hose bard and attach with clamp.
c. Connect gauge assembly (Item J) to hose barb on FCV outlet.
Open FCV (Item 24) to highest flow setting.
d. Connect the proper pneumatic adapter to QDV (Item 37) for
side fill units or (Item 62) for top fill.
e. Increase pressure to 19 psig (1,3 bar).
f. Turn FCV valve (Item 24) to Off setting.
g. Allow unit to sit undisturbed for 60 minutes.
h. Turn FCV valve (Item 24) to highest flow setting.
i. If pressure gauge (Item J) is at or above 10 psig (0,7 bar), unit
passes test.
RP18 – Plumbing Leak Test (Figure 14)
a. Remove soft case (RP 4)
b. Assemble oxygen regulator, pneumatic adapter and hose.
Connect assembly to oxygen gas source.
c. Assemble pressure gauge (Item J) and adapter assembly. Thread
hose barb onto pressure gauge (use Teflon® tape). Push tubing
onto hose bard and attach with clamp.
d. Connect gauge assembly (Item J) to hose barb on FCV outlet.
Open FCV (Item 24) to highest flow setting.
e. Connect the proper pneumatic adapter to QDV (Item 37) for
side fill units or (Item 62) for top fill.
f. Increase pressure to 19 psig (1,3 bar).
g. Leak test all connections, joints, and valves with leak test solu-
tion.
h. Close FCV (Item 24) by turning to Off position. Remove pressure
gauge assembly
i. Disconnect pneumatic adapter from QDV.
j. Leak test QDV poppet and FCV outlet.
k. Repair all leaks by following appropriate repair procedures.
FIGURE 15: Vent Valve Assembly
FIGURE 14: Plumbing Tests Set-up
NOTE: PRV (Item 49) and SRV (Item 43) may leak slowly. Repair
all other leaks first and retest for pressure retention before changing
relief valves.
WARNING: The unit must be empty and vented before starting pro-
cedure.