W DOC AIRBUS | AMM A320F

Installation of the Overpressure Valve

TASK 53-39-41-400-002-A
Installation of the Overpressure Valve

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.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 191
ZONE: 192
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
Torque wrench: range to between 0.45 and 0.35 m.daN (39.82 and 30.97 lbf.in ) T
No specific
Torque wrench: range to between 0.80 and 0.70 m.daN (70.80 and 61.95 lbf.in ) T
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
191
AIR CONDITIONING COMPT AND FAIRINGS
192
AIR CONDITIONING COMPT AND FAIRINGS
191EB, 191LB, 192EB, 192LB
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 53-35-11-000-001-A
Removal of the Wing-to-Fuselage Fairings
TASK 53-35-11-400-001-A
Installation of the Wing-to-Fuselage Fairings
TASK 53-35-13-000-002-A
Removal of the Quick-Release Access Panels from the Belly Fairing Structure
TASK 53-35-13-400-002-A
Installation of the Quick-Release Access Panels on the Belly Fairing Structure
F Overpressure Valve
3. Job Set-up
Subtask 53-39-41-869-050-A
A. Aircraft Maintenance Configuration
   (1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position in zone 191 and 192.
   (2) Make sure that quick-release access panels from the belly fairing structure are removed (Ref. AMM TASK 53-35-13-000-002):
   (3) Make sure that the wing-to-fuselage fairing panels are removed (Ref. AMM TASK 53-35-11-000-001):
Subtask 53-39-41-210-050-A
B. Inspection of Seal
   (1) Make sure that the seal of the shutter assembly is clean and in the correct condition.
4. Procedure
Subtask 53-39-41-420-050-A
A. Installation of Component
F Overpressure Valve
   (1) Put the tripod assembly (6) in position.
   (2) Install the bolts (4), the spacers (5) and the nuts (3).
   (3) TORQUE the nuts (3) to between 0.45 and 0.35 m.daN (39.82 and 30.97 lbf.in ) T.
   (4) Put the shutter assembly (2) in position on the shaft (7).
   (5) Compress the spring (8) to install the Shutter assembly (2) and nut (1) easily.
   (6) Install the nut (1).
   (7) TORQUE the nut (1) to between 0.80 and 0.70 m.daN (70.80 and 61.95 lbf.in ) T.
   (8) Make sure that the travel range of the shutter assembly (2) is correct.
5. Close-up
Subtask 53-39-41-410-051-A
A. Installation of the Access Panels
   (1) Install the wing-to-fuselage fairing panels (Ref. AMM TASK 53-35-11-400-001):
   (2) Install the quick-release access panels on the belly fairing structure (Ref. AMM TASK 53-35-13-400-002):
Subtask 53-39-41-410-050-A
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.02 06:29:13 UTC
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