C. Expendable Parts
 -------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
5 bush 35-12-01 01 -010 R
 EFF : ALL

35-11-41Page 405

 D. 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 35-11-41-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 35-11-41-860-051
 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is in position at the access door

 812.

 (2)
 Open the access door 812.

 (3)
 Make sure that the aircraft electrical circuits are energized (Ref. TASK 24-41-00-861-002).

 (4)
 Make sure that the warning notice which tells persons not to push the OXYGEN/CREW SUPPLY pushbutton switch is in position.

 Subtask 35-11-41-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/CREW/OXY/SPLY 1HT HA01
 EFF : ALL

35-11-41Page 406

 4. Procedure
_________
 (Ref. Fig. 401/TASK 35-11-41-991-001)
 Subtask 35-11-41-420-053
 A. Installation of the Crew Oxygen-Storage Cylinder (5750HM) R NOTE : Only use SPECIAL MATERIALS (Material No. 05-003B) on the thread of
____ R the nut or on the flared part of the tube. Only apply a thin layer R of the compound to the first three male-threads.
 (1)
 Examine the expiry date on the cylinder to make sure that you can still use it.

 (2)
 Carefully put the cylinder (1) on the support (11) and between the clamps (9) and (10).

 (3)
 Put the nut (8) in the clamp (10) and tighten the pin (7).

 (4)
 Remove the oxygen cylinder stowage cap from the cylinder valve (4).

 (5)
 Remove the blanking cap from the union (6).

 (6)
 Put the new bush (5) on the union (6) and tighten it.

 (7)
 Remove the blanking cap from the transmitter (2).

 (8)
 Remove the oxygen cylinder cap stowage from the cylinder valve (4).

 (9)
 Put the regulator (2) on the valve (4) and TORQUE the nut (3) to between 7.5 and 8.0 m.daN (55.30 and 58.99 lbf.ft).

 Subtask 35-11-41-790-050
 B. Leak Test
 (1)
 Apply the solution SPECIAL MATERIALS (Material No. 05-004) to the mechanical connections.

 (2)
 Very slowly open the valve of the cylinder (5750 HM) 3.5 to 4 turns.

 (3)
 Let the pressure become stable. This occurs after approximately 90 seconds.

 (4)
 Fully open the cylinder valve.

 EFF : ALL

35-11-41Page 407

 (5)
 Examine each connection to make sure that there are no leaks.

 (6)
 Rub off the solution SPECIAL MATERIALS (Material No. 05-004).

 5. Close-up
________ Subtask 35-11-41-865-052
 A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): 1HT
 Subtask 35-11-41-860-052
 B. Put the aircraft back to its initial configuration.
 (1)
 Make sure that the work area is clean and clear of tool(s) and other items.

 (2)
 Remove the warning notice(s).

 (3)
 De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002)

 Subtask 35-11-41-410-050
 C. Close Access
 (1)
 Close the access door 812.

 (2)
 Remove the access platform(s).

 EFF : ALL

35-11-41Page 408

 CYLINDER - OXYGEN STORAGE (5750HM) - INSPECTION/CHECK
_____________________________________________________
 TASK 35-11-41-750-002
 Hydrostatic Test of the Crew Cylinder-Oxygen Storage (5750HM)

 1. Reason for the Job
__________________
R R Self Explanatory
 2. Job Set-up Information
______________________
 A. Referenced Information
　
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