BIRD MARK 7 - Page 20

SECTION
6:
RISASSEMBLY
AND
REASSEMBLY
INSTRUCTIONS
. DISASSEMBLY AND REASSEMBLY INSTRUCTIONS
5.7 Reassemble CONTROLLED EXPIRATORY
TIME valve (P/N 1132A) as follows:
m Check O-rings (P/N 0138, P/N 0114 and P/N
7849) for flat spots, cuts or damage. Replace
if necessary. Use a Ye” open end wrench to
reinstall valve into Centerbody.
и Расе a drop of lubricant (P/N 0631) on
O-ring (P/N 0138) at valve stem.
8 Install cam washer (P/N 4021), cam stop
(P/N 4020) and packing nut onto vaive body
and secure in place using a %" open end
wrench.
NOTE: Install cam stop (P/N 4020) with the stop tab
facing away from the Centerbody.
5.8 Reassemble INSPIRATORY FLOWRATE
valve (P/N 1198) as follows:
m Check O-rings (P/N 0274 and P/N 0193) for
flat spots or cuts. Replace if necessary. Use a
4" open end wrench to install FLOWRATE
valve adapter (P/N 6811) into Centerbody.
m Inspect O-rings (P/N 0114, P/N 7849 and
P/N 0138 on valve body) for flat spots or cuts.
Replace jf necessary. Using a %” open end
wrench, secure INSPIRATORY FLOWRATE
valve to FLOWRATE vaive adapter.
m Place a drop of lubricant (P/N 0631) on
O-ring (P/N 0138) at valve stem.
@ Install cam washer (P/N 4021), cam stop
(P/N 4020) and packing nut onto valve body
and secure in place using a Y" open end
wrench.
NOTE: Install cam stop (P/N 4020) with the stop tab
facing away from the Centerbody.
5.9 Reinstall SENSING/SERVO VENTURI into
Centerbody. Hand tighten in place.
5.10 VENTURI reassembly as follows:
= Insure that the venturi jet is free of any
obstructions, then hand tighten jet cage onto
the venturi body (Fig. 30).
FIGURE 30
NOTE: It is important to perform the above step first to
ensure the proper distance between the venturi jet and
the venturi body is maintained.
m Smear a single drop of lubricant (P/N 0631)
on the center of O-ring (P/N 0141) of the
venturi body, then install in place.
NOTE: Do not lubricate O-ring (P/N 0140). Wipe clean
with isopropyl alcohol.
É Prior to installation of the venturi gate cage
on the main body, check the gate cage spring
for proper length. The spring should be the
same length as the gate shaft. Replace if
necessary.
m Screw the gate cage assembly onto the
venturi body until hand tight against the
Centerbody.
5.11 Compartment stud installation as follows:
m Using a %s” open end wrench or nut driver,
reinstall compartment studs in place.
NOTE: Short, polished studs are assembled on
Pressure Compartment side with the inspiratory power
driveline stud at the bottom. See Fig. 32 for proper
positioning of the studs.
m Inspect O-ring (P/N 0114) on Compartment
stud quick-disconnect socket for cuts or flat
spots. Replace if necessary.
m Using a %s” open end wrench, reinstall
orificed quick-disconnect socket (P/N 7345)
at bottom stud.
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