________________________________________________________________________
TASK 52-73-12-000-001
Removal of the Cabin-Pressure Detection Pressure-Switch (14WN)
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU
_______ START A TASK ON OR NEAR:
-
THE FLIGHT CONTROLS
-
THE FLIGHT CONTROL SURFACES
-
THE LANDING GEAR AND THE RELATED DOORS
-COMPONENTS THAT MOVE.
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 blanking plug
No specific circuit breaker(s) safety clip(s)
No specific access platform 1.80 m (5 ft. 11 in.)
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 52-73-12-991-001 Fig. 401
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3. Job Set-up
__________ Subtask 52-73-12-860-050
A. Aircraft Maintenance Configuration
(1) Energize the ground service network
(Ref. TASK 24-42-00-861-001)
Subtask 52-73-12-865-050
B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU EIS/SLIDES/ARM AND WARN/FLT 15WN P11 121VU EIS/SLIDES/ARM AND WARN/GND 13WN P10
Subtask 52-73-12-010-050
C. Get Access
(1)
Put the access platform in position at zone 122.
(2)
Open the avionics compartment access door 811.
4. Procedure
_________ Subtask 52-73-12-020-050
A. Removal of the Proximity Switch
(Ref. Fig. 401/TASK 52-73-12-991-001)
(1)
Disconnect the electrical connector (4).
(2)
Put a blanking cap on the electrical connector (4).
(3)
Remove and retain the calibrated plug (1).
(4)
Put a blanking plug in the plug calibrated hole part on the pressure switch.
(5)
Disconnect the line (8).
(6)
Remove the restrictor (7) with the O-ring (6).
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Cabin Pressure Detection Pressure Switch - (14WN)
Figure 401/TASK 52-73-12-991-001
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1 1 Feb 01/98
1 1
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(7)
Discard the O-ring (6).
(8)
Put a blanking plug on the connection of the line (8).
(9)
Remove the bolts (3) and the washers (2).
(10) Remove the pressure switch (5).
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Installation of the Cabin Pressure Detection Pressure-Switch (14WN)
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 blanking plug
B. Expendable Parts
-------------------------------------------------------------------------------FIG.ITEM |DESIGNATION |IPC-CSN -------------------------------------------------------------------------------
O-ring 52-73-01 02 -030
C. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-42-00-861-001 Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power
52-73-00-720-003 Operational Test of the Residual Cabin Pressure Warning System and In-Situ Functional Test of the Cabin Pressure Detection Pressure-Switch
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