(2)
Install the cap on the oxygen test port 7504WR1.
(3)
Remove the vinyl bags from the disconnected line ends.
(4)
Remove the blanking plugs from the disconnected line ends.
(5)
Connect the distribution system lines to the oxygen regulators 910WR1 and 910WR2.
(6)
TORQUE the connections to between 5.20 and 5.65 m.daN (38.34 and
41.66 lbf.ft).
(7)
Make sure that the work area is clean and clear of tool(s) and other items.
5. Close-up
________ Subtask 35-23-00-865-067
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1WR, 2WR.
Subtask 35-23-00-614-052
B. Pressurize the Emergency Oxygen System
(1)
Slowly open the manual shut-off valves of the emergency oxygen cylinders 3.5 to 4 turns.
(2)
Let the pressure become stable.
NOTE : This occurs after approximately 90 seconds.
____
(3)
Fully open the manual shut-off valves of the emergency oxygen cylinders.
(4)
If necessary, fill the emergency oxygen cylinders (Ref. TASK 35-21-
00-614-002). Subtask 35-23-00-942-055
C. Put the aircraft back to its initial configuration.
(1) Remove the warning notice(s). Subtask 35-23-00-410-059
D. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Install the related lining panel to close access to the oxygen storage (Ref. TASK 25-55-12-400-003).
(3)
Set the CARGO COMPT LIGHT switch 8LU to the OFF position.
(4)
Remove the access platform(s).
(5)
Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).
Subtask 35-23-00-862-057
E. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
TASK 35-23-00-790-002
Leak Check of Components in the Distribution Network of the Oxygen System
1. Reason for the Job__________________
Self Explanatory
2. Job Set-up Information______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------
REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific a shut-off valve, a vent device and an overpressure device
No specific circuit breaker(s) safety clip(s)
No specific lint-free cloth
No specific pressure measuring device
No specific DEPRESSURIZATION TOOL (P/N 4421072)
No specific GROUND PRESSURE SOURCE (Nitrogen A_A_59503, Type 1, Class 1, Grade B)
No specific access platform 1.6 m (5 ft. 3 in.)
No specific 1 BAG - VINYL
No specific 1 CAP - BLANKING
No specific 1 PLUG - BLANKING, PRESSURE
No specific 1 WARNING NOTICE
No specific Torque Wrench : range 1.00 to 10.00 m.daN
(8.00 to 75.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
Material No. 05-004 USA MIL-L-25567 TYPE I OXYGEN LEAK DETECTOR (Ref. 20-31-00)
C. Referenced Information
-------------------------------------------------------------------------------
REFERENCE DESIGNATION
-------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power
24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
25-23-41-000-001 Removal of the Ceiling Panels
25-23-41-400-001 Installation of the Ceiling Panels
25-55-12-000-003 Removal of the Sidewall Panels in the AFT Cargo Compartment - FR59/FR65
25-55-12-400-003 Installation of the Sidewall Panels in the AFT Cargo Compartment - FR59/FR65
35-00-00-860-001 Special precautions when working on a Gaseous Oxygen System
35-21-00-614-001
52-30-00-860-001 Open the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
52-30-00-860-002 Close the FWD or AFT Cargo-Compartment Door with the Yellow Electric Pump
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