_______
SOURCE OF OXYGEN. OXYGEN BECOMES EXPLOSIVE WHEN IT TOUCHES
HYDROCARBONS.
WARNING : CLEAN THE TOOLS AND MAKE SURE YOUR HANDS ARE CLEAN TO PREVENT
_______
CONTAMINATION OF THE OXYGEN SYSTEM.
CAUTION : PUT DRY, CLEAN, METAL OR PLASTIC PLUGS ON ALL PIPES OR UNITS
_______ REMOVED TEMPORARILY. PUT EACH PIPE OR UNIT IN A SEALED VINYL BAG.
Subtask 35-21-52-860-051
A. Obey the special precautions when you do this task (Ref. TASK 35-00-00-860-001).
Subtask 35-21-52-020-050
B. Removal of the Filling Port (7520WR)
(Ref. Fig. 401/TASK 35-21-52-991-001)
(1)
Release the quick release fasteners (6) and remove the cover assembly (7).
(2)
Loosen the nut (4) and disconnect the pipe (3).
(3)
Put PLUG - BLANKING on the disconnected line ends.
(4)
Put the disconnected line ends into a sealed BAG - VINYL.
(5)
Remove the screws (1), the washers (8) and the nuts (2).
(6)
Remove the filling port (5).
Filling Port (7520WR)
Figure 401/TASK 35-21-52-991-001
EFF : 401-499, 35-21-52 Page 404
Aug 01/05
CES
TASK 35-21-52-400-001
Installation of the Filling Port (7520WR)
1. Reason for the Job
__________________
Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION
-------------------------------------------------------------------------------
No specific access platform 1.6 m (5 ft. 3 in.)
No specific Torque Wrench : range 0.20 to 3.60 m.daN
(2.00 to 26.00 lbf.ft)
B. Consumable Materials
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
Material No. 07-001D D 75-T-2-5721-3-1 ELECTRICAL BONDING COATING (BLUE COLOR) (Ref. 20-31-00)
Material No. 09-016B USA MIL-PRF-81733D TYPE II CORROSION INHIBITING FILLET CONSISTENCY (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 25-55-12-000-003 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
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
35-00-00-860-001 Special precautions when working on a Gaseous Oxygen
System 35-21-00-790-001 Leakage and Obstruction Test of the Filling Line 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 35-21-52-991-001 Fig. 401
3. Job Set-up
__________
Subtask 35-21-52-860-050
A. Aircraft Maintenance Configuration
(1)
Make sure that the ground service network is energized
(Ref. TASK 24-41-00-861-002).
(2)
Make sure that a warning notice is in position in the cockpit to tell persons not to operate the emergency oxygen system.
(3)
Make sure that the access platform is in position at the AFT cargo-compartment door 826.
(4)
Make sure that the AFT cargo-compartment door 826 is open (Ref. TASK 52-30-00-860-001).
(5)
Make sure that the CARGO COMPT LIGHT switch 8LU is in the ON position.
(6)
Make sure that the related lining panel is removed (Ref. TASK 25-55-12-000-003).
(7)
Make sure that the manual shut-off valves of the emergency oxygen cylinders are close.
(8)
Obey the special precautions when you do this task (Ref. TASK 35-00-00-860-001).
Subtask 35-21-52-865-051
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
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