(2)
 Install the related lining panel to close access to the oxygen storage (Ref. TASK 25-55-12-400-003).

 (3)
 Set the CARGO COMPT LIGHT switch 8LU to the OFF position.

 (4)
 Remove the access platform(s).

 (5)
 Close the AFT cargo-compartment door 826 (Ref. TASK 52-30-00-860-002).

 Subtask 35-23-11-862-050
 B. De-energize the aircraft electrical circuits
 (Ref. TASK 24-41-00-862-002).

 SWITCH - ALTITUDE (16WR) - REMOVAL/INSTALLATION
_______________________________________________
 TASK 35-23-15-000-001
 Removal of the Altitude Switch (16WR)

 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 circuit breaker(s) safety clip(s)
 No specific access platform 2 m (6 ft. 7 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
35-23-15-991-001 Fig. 401
 3. Job Set-up
__________ Subtask 35-23-15-010-050
 A. Get Access
 (1)
 Put the access platform in position at the access door 824.

 (2)
 Open the access door 824.

 EFF : ALL
35-23-15Page 401

 Subtask 35-23-15-865-050
 B. Open, safety and tag this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/PASSENGER/CTL AND WARN 1WR HA02
 4. Procedure
_________
 (Ref. Fig. 401/TASK 35-23-15-991-001) Subtask 35-23-15-020-050
 A. Removal of the Altitude Switch
 (1)
 Disconnect the electrical connector (1) from the altitude switch (2).

 (2)
 Put a blanking cap on the electrical connector (1).

 (3)
 Remove the screws (4) and the washers (5) and remove the altitude switch (2) from its support (3).

 EFF : ALL
35-23-15Page 402

 Altitude Switch
 Figure 401/TASK 35-23-15-991-001
 EFF :  ALL  35-23-15 Page 403 
Feb 01/98
 CES 

 TASK 35-23-15-400-001
 Installation of the Altitude Switch (16WR)

 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 access platform 2 m (6 ft. 7 in.)

 B. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
35-23-00-720-002  Functional Test of the Passenger Emergency-Oxygen System R 52-41-00-410-002 Close the Avionics Compartment Doors after Access 35-23-15-991-001 Fig. 401
 3. Job Set-up
__________
 Subtask 35-23-15-860-050

 A. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is in position at the access door

 824.

 (2)
 Make sure that the access door 824 is open.

 EFF : ALL
35-23-15Page 404

 Subtask 35-23-15-865-051
 B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU OXYGEN/PASSENGER/CTL AND WARN 1WR HA02
 4. Procedure
_________
 (Ref. Fig. 401/TASK 35-23-15-991-001)
 Subtask 35-23-15-420-050

 A. Install the Altitude Switch
 (1)
 Install the altitude switch (2) on its support (3) and install and tighten the screws (4) and the washers (5).
　
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