(2)
Remove the shut-off valves - main distribution line (Ref. TASK 35-22-61-000-001).
(3)
Remove the shut-off valves - riser line (Ref. TASK 35-22-62-000-001).
(4) Remove the check valves (Ref. TASK 35-22-63-000-001).
_________
4. Procedure
Subtask 35-23-00-720-056
A. Do these Functional Tests
(1)
Do the functional check of the pressure relief valve refer to the CMM (Ref. CMM 351099).
(2)
Do the functional check of the shut-off valves - main distribution line refer to the CMM (Ref. CMM 351091).
(3)
Do the functional check of the shut-off valves - riser line refer to the CMM (Ref. CMM 351093).
Subtask 35-23-00-710-054
B. Do the operational check of the check valves refer to the CMM (Ref. CMM 351092).
5. Close-up
________ Subtask 35-23-00-410-061
A. Installation of Components
(1)
Install the pressure relief valve (Ref. TASK 35-23-55-400-001).
(2)
Install the shut-off valves - main distribution line (Ref. TASK 35-22-61-400-001).
(3)
Install the shut-off valves - riser line (Ref. TASK 35-22-62-400-001).
(4)
Install the check valves (Ref. TASK 35-22-63-400-001).
TASK 35-23-00-720-006
Functional Check of Altitude Pressure Switch and Detailed Inspection of Oxygen Mask Assembly
1. Reason for the Job
__________________
Refer to the MPD TASK: 352001-02
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 vacuum source No specific TEST TOOL - MANUAL RELEASE 98A35207599000 1 HOSE - ADAPTER, ALTITUDE SWITCH
B. 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 25-23-41-000-001 Removal of the Ceiling Panels 25-23-41-400-001 Installation of the Ceiling Panels 35-00-00-860-001 Special precautions when working on a Gaseous Oxygen
System 35-21-00-614-001 35-23-00-550-001 Packing of the Oxygen Masks 35-23-15-000-001 Removal of the Altitude Switch (16WR) 35-23-15-400-001 Installation of the Altitude Switch (16WR)
3. Job Set-up
__________
Subtask 35-23-00-861-057
A. Energize the aircraft electrical circuits
(Ref. TASK 24-41-00-861-002).
Subtask 35-23-00-865-069
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 35-23-00-010-064
C. Get Access
(1)
Remove the altitude pressure switch 16WR (Ref. TASK 35-23-15-000-001).
(2)
Do not disconnect the electrical connector.
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