(2)
On all of the emergency oxygen containers, push the left hand side of the test lever on the door assembly until the over-center spring keeps the lever at 90 degrees to the door surface.
NOTE : The test lever should stay in this position until manually
____
set.
4. Procedure
_________ Subtask 35-23-00-860-062
A. Obey the special precautions when you do this task (Ref. TASK 35-00-00-860-001).
Subtask 35-23-00-710-056
B. Operational Check of the Manual Mask Release
(Ref. Fig. 501/TASK 35-23-00-991-010)
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
1. On the overhead panel 21VU: - Lift the switch guard and push the MASK MAN ON pushbutton switch. On the overhead panel 21VU:- The SYS ON indicator light comes on.
In the cabin:
- The doors of all emergency oxygen containers open.
2. On the maintenance panel 50VU: - Push the TMR RESET pushbutton switch. On the maintenance panel 50VU:- The ON indicator light on the TMRRESET pushbutton switch comes on.
On the maintenance panel 50VU, after 5 seconds:
- The ON indicator light on the TMR RESET pushbutton switch goes off.
On the panel 21VU: - The SYS ON indicator light goes off.
3. On the Forward Attendant Panel In the cabin:
(FAP) 120RH: - Push the PRE REC ANN. STOP - The emergency announcements stop.
pushbutton switch.
Emergency Oxygen Control and Indicating System
Figure 501/TASK 35-23-00-991-010
CES 5. Close-up
________ Subtask 35-23-00-942-058
A. Put the aircraft back to its initial configuration.
(1)
Remove the warning notice(s).
(2)
Put the emergency oxygen container back to its initial configuration
(a)
Close all the doors of the emergency oxygen containers.
(b)
Push the test lever back to the normal position and let them retract into their containers.
NOTE : Spring tension retracts the door stops automatically when
____ they are in the normal position.
(3) Make sure that the work area is clean and clear of tool(s) and other items.
Subtask 35-23-00-862-066
B. De-energize the aircraft electrical circuits
(Ref. TASK 24-41-00-862-002).
TASK 35-23-00-790-001
Leak Check of Components in the Intermediate Line 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 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
25-55-12-000-003 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
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