(1)
 Do an inspection of the component interface and/or the adjacent area.

 (2)
 Remove the vinyl bags from the disconnected line ends.

 (3)
 Remove the blanking plugs from the disconnected line ends.

 (4)
 Put the shut-off valve (3) in position and connect the pipes (1) and (5).

 NOTE : The flow arrow on the shut-off valve - main distribution line
____
 must point in the flow direction.

 (5)
 Tighten the nuts (2) and (4) with your fingers.

 (6)
 TORQUE the nuts (2) and (4) to between 5.92 and 6.28 m.daN (43.65 and

 46.31 lbf.ft).
 NOTE : You must hold the fitting tightly in the correct position.

____
 (7) If necessary, install the clamps of the pipes adjacent to the shut-off valve (3).
 Subtask 35-22-61-865-052
 B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1WR, 2WR.
 Subtask 35-22-61-790-050
 C. Do this leakage check (Ref. TASK 35-23-00-790-002). Subtask 35-22-61-942-050
 D. Remove the warning notice(s).

 5. Close-up
________ Subtask 35-22-61-410-050
 A. Close Access
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 FOR 7550WR510 Install the sidewall panel 251HW (Ref. TASK 25-23-43-400-001).

 (3)
 FOR 7553WR460 Install the ceiling panel 241FC (Ref. TASK 25-23-41-400-001).

 Subtask 35-22-61-862-050
 B. De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 SHUTOFF VALVE - RISER LINE, FLOW EXCESS (7514WR1,7514WR2,7514WR3,7514WR4)
_________________________________________________________________________
 REMOVAL/INSTALLATION
____________________
 TASK 35-22-62-000-001
 Removal of the Shut-Off Valve - Riser Line (7514WR1-7514WR4)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific circuit breaker(s) safety clip(s) No specific 1 WARNING NOTICE FOR FIN 7514WR1 No specific 1 BAG - VINYL No specific 1 PLUG - BLANKING FOR FIN 7514WR2, 7514WR3, 7514WR4 No specific 1 BAG - VINYL No specific 1 PLUG - BLANKING
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 35-00-00-860-001 Special precautions when working on a Gaseous Oxygen
 System 35-22-62-991-001 Fig. 401 FOR FIN 7514WR1 53-22-12-000-001 Removal of the Cabin Floor Panels FOR FIN 7514WR2 53-22-12-000-001 Removal of the Cabin Floor Panels FOR FIN 7514WR3, 7514WR4 25-23-41-000-001 Removal of the Ceiling Panels

 3. Job Set-up
__________ Subtask 35-22-62-861-050
 A. Energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-861-002).

 Subtask 35-22-62-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/PASSENGER/CTL AND WARN 2WR HA03 49VU OXYGEN/PASSENGER/CTL AND WARN 1WR HA02
 Subtask 35-22-62-941-050
 C. Put a WARNING NOTICE in position in the cockpit to tell persons not to operate the emergency oxygen system.
 Subtask 35-22-62-010-050
 D. Get Access
 (1)
 FOR 7514WR1 Remove the floor panel 231TF (Ref. TASK 53-22-12-000-001).

 (2)
 FOR 7514WR2 Remove the floor panel 241DF (Ref. TASK 53-22-12-000-001).

 (3)
 FOR 7514WR3, 7514WR4 Remove the ceiling panel 241FC (Ref. TASK 25-23-41-000-001).

 4. Procedure
_________
 WARNING : KEEP ALL HYDROCARBONS (FUELS, LUBRICANTS, ETC.) AWAY FROM ALL

_______
 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
　
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