__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking cap No specific circuit breaker(s) safety clip(s) No specific sealed vinyl bag No specific warning notice No specific access platform 2 m (6 ft. 7 in.)
 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002  Energize the Aircraft Electrical Circuits from the External Power 35-11-41-991-001 Fig. 401
 EFF : ALL

35-11-41Page 401

 3. Job Set-up
__________ Subtask 35-11-41-010-050
 A. Get Access
 (1) Put the access platform in position at the access door 812.
 (2)
 Open the access door 812. Subtask 35-11-41-860-050

 B. Aircraft Maintenance Configuration
 (1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002)

 (2)
 Close the valve of the oxygen cylinder/valve assembly (5750 HM). Subtask 35-11-41-614-050

 C. Bleed the oxygen system:
 (1)
 In the cockpit, on the panel 21VU, push the OXYGEN/CREW SUPPLY pushbutton switch. The OFF legend goes off.

 (2)
 On an oxygen-mask stowage box, operate the PRESS TO TEST AND RESET control slide a sufficient number of times to make the system empty.

 (3)
 On the panel 21VU, release the OXYGEN/CREW SUPPLY pushbutton switch. The OFF legend comes on.

 (4)
 On the panel 21VU, put a warning notice to tell persons not to push the OXYGEN/CREW SUPPLY pushbutton switch.

 Subtask 35-11-41-865-050
 D. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
 EFF : ALL

35-11-41Page 402

 4. Procedure
_________
 (Ref. Fig. 401/TASK 35-11-41-991-001) Subtask 35-11-41-020-053
 A. Removal of the Crew Oxygen-Storage Cylinder (5750HM)
 (1)
 Loosen the nut (3) and disconnect the oxygen pressure regulator transmitter (2) from the cylinder valve (4).

 (2)
 Put a blanking cap on the regulator (2).

 (3)
 Put the regulator (2) in a sealed vinyl bag.

 (4)
 Put an oxygen-cylinder stowage cap on the cylinder valve (4).

 (5)
 Disconnect the union (6) and discard the bush (5).

 (6)
 Put a blanking cap on the union (6).

 (7)
 Put an oxygen-cylinder stowage cap on the cylinder valve (4).

 (8)
 Loosen the nut (8) and disengage the pin (7) from the clamp (10).

 (9)
 Open the clamps (9) and (10) and remove the cylinder (1), from the support (11).

 EFF : ALL

35-11-41Page 403

 Oxygen Storage Cylinder
 Figure 401/TASK 35-11-41-991-001
 EFF :  ALL  35-11-41 Page 404 
Feb 01/98
 CES 

 TASK 35-11-41-400-001
 Installation of the Crew Oxygen-Storage Cylinder (5750HM)
 1. Reason for the Job
__________________
 Self Explanatory
 2. Job Set-up Information
______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking cap
 No specific warning notice
 No specific access platform 2 m (6 ft. 7 in.)
 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. 05-003B USA MIL-G-27617
 OXYGEN SYSTEM LUBRICANT (Ref. 20-31-00)
 Material No. 05-004 USA MIL-L-25567 TYPE I
　
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